How to build a Fish Pond – Part 6 | Pond Liner & Underlayment
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How to build a Fish Pond – Part 6 | Pond Liner & Underlayment

August 14, 2019

[SOUND] [MUSIC] We’re ready to put down the underlayment and the liner in the pond. It’s only gonna take a couple minutes. So I wanna take the time right now to answer
some commonly asked questions that we hear all the time. One question that we get all the time is,
how long is this liner going to last? Well I’m here to tell you that the liner
that we’re using is a 45 mil EPDM liner. It’s incredibly durable,
has a lot of elasticity to it, and it has a guarantee from
the manufacturer for 20 years. Now the guarantee is about not
falling apart due to the Sun. Sun damage that is, so you could literally
take this rubber liner, put it on a roof for 20 years, and
it still guaranteed to that time. So when, we put it in the pond and we conform
it to the walls, we’re gonna put rock work in here, we’re gonna put some gravel down, and
we’re gonna protect that liner from the Sun. So we’re literally getting years and
years beyond that. I’ve seen ponds that are 40, 50 years old and
they’re still holding water, still intact and they’re gorgeous. Another common question we get is once
that ladder’s down, can I walk on it? They, the people are real nervous
to get in and out of the pond. Their dogs are around. They’re nervous about that. You literally can walk right in here. You can have the rocks in there. You can step on it. I’ve seen big, you know, Rottweilers run
through the pond with their nails and it doesn’t damage the pond at all. The other question I get all the time is
how do I know what size liners to get, and that’s what I’m gonna cover
right now before we do this. This particular pond, eight foot by 11,
we’re down about 33 inches deep. So, if I’m eight foot wide, I need to
calculate the three foot down, I need to calculate the three foot up, and then I need
about six inches overhang on each side of the pond, so I can do my edge treatment and
I can make sure the water’s not coming out. You don’t want it real, real close, okay? So, I need 15 foot on width this way. We’re 11 foot wide, and, once again,
three foot down, three foot up, and then I need a little extra play
on both ends, so do the math there. What we have on this pond,
we have a 15 by 20 liner. It’s gonna be all one continuous piece,
and before we put the liner in, we’re gonna spread the underlayment. Let’s get started. [NOISE] So a common asked question I get about this underlayment is when we’re, we’re sending out custom pond kits to people a lot of times the fabric underlayment doesn’t match the liner size, and you need two or three pieces the underlayment cover the excavation? So that’s a common asked question. It doesn’t have to be one continuous piece. You can cut it in all different shapes. As long as you cover all the spots where your
getting, you know, rocks and roots might come through so I wanna throw this piece up
here and then we’re ready for the liner. [NOISE] [SOUND] All right we have the underlayment, and the liner installed I got my fish
tunnel back in on top of here, we are gonna set the skimmer in place,
but otherwise we’re ready to rock, if you have any questions whatsoever
about what we did here today. Please post your questions
in the comments section, I’ll get to every single one of them. I’m Eric Triplett, The Pond Digger. Thanks for watching. [MUSIC]


  • Reply Sopheak U May 12, 2016 at 4:27 am

    Does the goat come with the filtration system?

  • Reply Armando Rojas May 22, 2016 at 10:06 pm

    Cambiar a español hi i want to make a pool of 8 x 5 meters with the following depths : the first 13 cm, the second 18 cm , 60 cm third and fourth 1 meter As plastic i need? Thanks

  • Reply Lania Paulk May 25, 2016 at 9:29 am

    Random goat like sup?

  • Reply K pirategirl May 30, 2016 at 3:12 am

    great frog sound effects

  • Reply Rai Singh Uriarte June 8, 2016 at 3:34 pm

    Many thanks for the video!, what do you think about a concrete cave for the fish, I think I will not be able to find the kind of material you use. Thanks again!.

  • Reply Gracen Skyles June 15, 2016 at 7:00 am

    that goat tho

  • Reply Andrew Jordan June 20, 2016 at 1:16 am

    Hi Eric, I am putting in my pond and was wondering is sand, another substrate or just the dirt would be fine in place of the underlayment? Thank you for your consideration, Andrew

  • Reply Esketit June 25, 2016 at 3:09 am

    random ass goat at 3:11 ??

  • Reply Kyleen Drake July 2, 2016 at 4:21 am

    Couldn't you get the same effect with a cement pond and not even worry about liners?

  • Reply Jeannette Schroer July 7, 2016 at 6:35 am

    What's with the goat

  • Reply boboW19 July 11, 2016 at 3:04 am

    I think the goat wanted to help

  • Reply Michael Lui July 16, 2016 at 10:56 pm

    great video.??wouldn't it be better if you spray concrete for durability and maintenance free?? thanks

  • Reply Frog - Agar August 2, 2016 at 11:32 pm

    why is there a goat behind you

  • Reply Alexandra Greene August 4, 2016 at 4:05 am

    Do toadbiters come in there often

  • Reply Gentle Firefly September 4, 2016 at 4:02 am

    The goat trying to help. So cute!

  • Reply Jujii Fruit October 8, 2016 at 9:50 pm


  • Reply Tommy Noland October 9, 2016 at 2:41 am

    What's the biggest pond size you make?

  • Reply Joseph Ng December 13, 2016 at 11:05 am

    what is the purpose of laying "underlayment" ?
    sorry im very new to pond building…

  • Reply Florida boys Fishin January 8, 2017 at 2:29 am

    How much was the pond liner and under lay?

  • Reply Reed Sharp February 1, 2017 at 1:34 am

    If u put the fish hole in there, will no more predators kill ur fish

  • Reply David B February 7, 2017 at 4:25 am

    Hey Eric, do you bring your kid to all your job sites or just the video shoots?

  • Reply BuddhaBelly February 24, 2017 at 2:46 am

    What does the underlayment do?

  • Reply jordin cooper March 4, 2017 at 8:50 am

    nice add with the goat and frogs in the background.

  • Reply AT Balakay March 22, 2017 at 5:00 am

    Every single one of them huh?

  • Reply ligu morang March 26, 2017 at 4:28 pm

    whats the average budget for a koi pond construction?

  • Reply Eric Newman March 27, 2017 at 7:52 am

    No bottom drain?

  • Reply Marc Kirwan April 3, 2017 at 5:56 pm

    Will a large tree's roots seeking water ever be able to penetrate a liner once it's down?

  • Reply Brian Reck April 9, 2017 at 1:53 pm

    Great videos Eric. Basic question, I have about a 12×12 area I will be excavation for a pond, using your exact methods of shelving and ending with a 30" max depth, what size kit should I purchase? Using a retailers online calculator, it said I need a 20×20 kit, is that too big?

  • Reply darlamutt April 12, 2017 at 3:15 pm

    hi pond digger can you tell me what the liner is made out of please and you have a grate video series !!!! ty

  • Reply Saman Salamat May 8, 2017 at 3:15 am

    Did anyone else see the goat eating the liner? ??

  • Reply Demetrius Ford May 14, 2017 at 10:27 pm

    nice video and the goat is juss chilling.

  • Reply Panic! June 15, 2017 at 8:04 pm

    How do you stop predators getting to your fish? Without an ugly net over the top of it. Thanks.

  • Reply TheMan Brand July 1, 2017 at 5:56 am

    would it be fine going with epdm 45ml roofing liner?

  • Reply Sean Flynn July 4, 2017 at 5:01 pm

    what can you have as an alternative to the skimmer?

  • Reply Sean Holt July 13, 2017 at 7:11 pm

    Can landscape fabric be used as underlayment?

  • Reply Nathan Kalkowski July 20, 2017 at 4:48 am

    Would a 13×20 work?

  • Reply Jennifer Adams July 24, 2017 at 8:18 pm

    First part sounded like there was a million frogs

  • Reply Big BHP July 26, 2017 at 7:16 am

    I've never seen anyone building a pond with a goat chewing the pond underliner

  • Reply Krystal Buoy July 28, 2017 at 4:40 pm

    I love your goat! Whats its name? It's gonna be famous. ❤️

  • Reply W Las August 5, 2017 at 7:45 pm

    sweet goat <3

  • Reply Nasser Haq August 15, 2017 at 5:11 pm

    from where i buy a liner and underlayment is this liner is the same liner which we cover the truck box from the rain

  • Reply Fernando Ecamp September 10, 2017 at 10:18 am

    great videos, well explained.

  • Reply Fernando Ecamp September 10, 2017 at 10:24 am

    I hate the imperial system (vs metric), it's so odd.

  • Reply Fernando Ecamp September 10, 2017 at 10:47 am

    Please help. I have purchased a liner that seems to have different textures for each side. One side is smoother and shiny the other is opaque and seems a little rough. Wonder which sides goes up or if it is irrelevant.

  • Reply freshwater aquatics September 10, 2017 at 9:40 pm

    yes um how many gallons is that pond
    i know you did this a while a go but i hope you still know

  • Reply Brody Crahan September 16, 2017 at 10:03 pm

    3:10 a random goat walks by unnoticed. lol

  • Reply David Harris September 29, 2017 at 5:27 am

    Baby goat likes the taste of underlayment.

  • Reply Ion Racer October 6, 2017 at 6:28 am

    Goat better helper than all my employees

  • Reply Giobel Koi Center October 21, 2017 at 11:06 am

    Very helpful tnx for sharing

  • Reply Skull.B無言 欣 October 22, 2017 at 11:28 am

    Goat. Pffft XD so cute lol

  • Reply Shabba Ranks November 13, 2017 at 6:01 pm

    How many frogs were there that day! ????

  • Reply CREATOR MLG November 14, 2017 at 11:08 am

    Lol a f***in goat XDDDDDDD

  • Reply Dean Harstdale November 21, 2017 at 9:04 am

    can i only use the liner without the underlayment?

  • Reply J.A.Y Devaux December 11, 2017 at 9:19 pm

    Do you need to put the layer of tarp before the liner

  • Reply SLAYER December 26, 2017 at 9:17 am

    3:11 Fukin hell he keeps comin back doesnt he hahhaha

  • Reply Aman Sabharwal January 23, 2018 at 8:38 pm

    How are you going to pot a drain?

  • Reply All Rice February 3, 2018 at 12:06 am

    Crew is very efficient. It pleases my eyes.

  • Reply A-Veteran Lawn Care February 18, 2018 at 1:25 pm

    Is there a goat guaranty as well?? Jk. Great tutorial.

  • Reply A-Veteran Lawn Care February 18, 2018 at 1:26 pm

    Is it necessary to get the liner as tight as possible or just conform it.

  • Reply Bookwerm4Life February 19, 2018 at 6:31 pm

    the goat is killing me LMAO

  • Reply Danny Smith March 6, 2018 at 4:12 am

    Great coverage on how to

  • Reply JOSEPH DA BOSS 56 March 13, 2018 at 3:15 pm

    Why was there a goat and frog sounds

  • Reply Shalong Gagenspofz March 18, 2018 at 11:03 am

    Always confusion with their numbers. Why?? Why BS. .45 mm you mean. Not 45 mm. Or is this industry full of deceptions as well.

  • Reply Howie Huynh March 24, 2018 at 8:14 pm

    Please ! Tell me where can i get all materials? This is so awesome. I want to build one. Thank you

  • Reply twochaudio twochaudio April 14, 2018 at 11:31 pm

    What is that 4 leg thing

  • Reply Kealii Ballao April 22, 2018 at 3:00 am

    Where the hell did the baby goat come from?

  • Reply Christina Facts April 29, 2018 at 9:19 pm


  • Reply Tony Nguyen May 4, 2018 at 4:11 pm

    Hi Pond digger. I want to buy this whole pond kit and how much for this completed kit?

  • Reply Random guy May 13, 2018 at 11:37 pm

    Can roots from trees puncture or damage the liner?

  • Reply Natural Ponds Lakes & Streams by Spring Creek Aquatic Concepts May 21, 2018 at 10:54 am

    20 years for a pond liner for a small pond is ok, When a pond gets big, that's when a "forever liner" becomes the best investment

  • Reply AquaLady AGAVE May 23, 2018 at 5:38 am

    Because he's the G.O.A.T. ppl

  • Reply AquaLady AGAVE May 23, 2018 at 5:42 am

    Bald guy always getting left behind lol

  • Reply samir allan June 18, 2018 at 10:20 pm

    Is it good to use 1 liner in a 15 x 15 pond with the waterfall or 2 separate liners 1 for the waterfall 1 for the pond

  • Reply Joseph Adams June 19, 2018 at 10:28 am

    3:10 where did that little guy come from?

  • Reply B0LT June 27, 2018 at 11:10 am

    im trying to build a budget pond and i was wondering how much an okay water filter is?

  • Reply Wesley Rollins July 1, 2018 at 1:43 am

    So I in my back yard I have some sand that will naturally fall and fill in any holes that I try to make is there a way I can prevent this from happening?

  • Reply Craig Howard July 6, 2018 at 7:36 pm

    That pond looked quite rough with stones and edges. I’m about to lay my underlayment and rubber liner and it’s taking me days to hone the surfaces smooth for fear of puncturing. Am I being over cautious?

  • Reply IAMELECTRIC1 July 8, 2018 at 6:49 pm

    So don't worry about the wrinkles?

  • Reply Fernando Dlp July 13, 2018 at 7:35 pm

    Hey, it seems there are some frogs that will be very happy to have a pond all to themselves…
    Thanks very much for the lesson!!!

  • Reply CHF Fam Camping hunting and fishing July 25, 2018 at 2:06 pm

    The goat

  • Reply Eliav Edri August 2, 2018 at 10:54 pm

    Love your channel! a little question, What is the difference between EPDM and PVC Liner? EPDM Is more expensive then wants to know if it is worth the extra money

  • Reply hu tao August 10, 2018 at 8:37 pm

    that is a goat?

  • Reply Blue Ocean September 14, 2018 at 8:17 pm

    Where is the best place to buy the 45 mil liner? Which manu. is best?

  • Reply Arun Chandran September 20, 2018 at 10:27 am

    Hi.. is a layer of geotextile NON woven fabric good enough as an underlayment before putting the EPDM liner? And how do i protect the liner from underground water pressure? Thank u

  • Reply Jun Choi October 28, 2018 at 5:19 am

    Can anyone explain why they have to use 2 pond liner? Which one is top one and which one is on the top?

  • Reply Marinus Du Preez November 24, 2018 at 8:29 pm

    What underliner do you use?

  • Reply jose paulino December 7, 2018 at 11:33 pm

    Where is the goat in the first 4 or 5 episodes?

  • Reply Jeremy Jeremy January 1, 2019 at 11:47 am

    What was the black cloth for? Weed?

  • Reply Elanne Ivy January 22, 2019 at 1:29 am

    I'm in Southern Ontario, Canada – any advice on the pond depth we would require so that frogs can over-winter in our pond? It can get down to -28 in January/February, but never colder than that. Thanks!

  • Reply Carlos Casanova February 19, 2019 at 4:24 am

    Can old carpeting be used as underlayment? For an above ground pool, can retaining wall blocks be used for up to 2.5 FT? Love the goat!

  • Reply Bilbo Ben Banging March 22, 2019 at 8:45 pm

    Yall fuckers act like yall aint ever seen a damn goat

  • Reply Bobbie Borror March 28, 2019 at 1:22 am

    What brand of underlayment tape did you use. And can you use the same for the liner?

  • Reply My Desiree May 7, 2019 at 7:06 pm

    In searching for a more decorative liner, the only one I can find is 25-mil (with a middle seam). Do you find that that thickness would work well in a 15×15 waterfall pond?

  • Reply R1scorpio May 11, 2019 at 11:06 pm

    Does the warranty cover goat eatings?

  • Reply Mark Milaor May 24, 2019 at 8:34 pm

    Is a skimmer necessary or can I just have a filter?

  • Reply Mark Milaor May 24, 2019 at 8:35 pm

    Also for a koi pond how big do you suggest the tunnel be? I have an extra 5 gal bucket but I'm not sure if it's big enough.

  • Reply dshshsh sbsbhsh June 1, 2019 at 12:38 am

    What type of underlyment do I need to buy

  • Reply MookDaGamer June 7, 2019 at 5:46 pm

    that goat though

  • Reply Greggers Grunderson July 17, 2019 at 4:23 am

    Sir, your pond has a goat. You're welcome.

  • Reply June Roney August 11, 2019 at 6:03 am

    My 1st liner has multiple holes in it. I bought a new liner and put that in and the liner that had multiple holes I put that on top of the new liner. I’m losing water around the side of my pond. The filtration system and waterfall are all intact. One thing I didn’t do is remove the small amount of water that had leaked into the pond. I put the liners on top of the water. Could that water be the water that’s coming out?

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