|
| Hi all,
I built large waterfall on top of 2 pieces of liner. One on top of the other for protection. There are several tons in the waterfall and I dont want to take it back down. The pond in front of it is leaking and i'm sure its from behind the waterfall. Can I seal the rock and rubber liner.? |
Follow-Up Postings:
|
| Jonas72, You could use construction urethane expanding foam to seal the spaces between the rock and liner. It is orange in colour but it can be painted with acrylic paint to disguise it. It also comes in black, though the black "waterfall foam" is much more expensive.( Google "waterfall expanding foam") You could also use a coating of hydraulic cement over the foam after it is dry to seal it completely. Wear gloves, go slowly using the foam, a little squeeze at a time and have lots of clean up rags around when you use the foam as it can be a messy job. Algae will eventually grow over the foam/hydraulic cement and hide it. |
|
| Thank you Horton for the response. I used a bunch of the expanding foam on the waterfalls. originally, with good success. But even the best bond isn't 100% waterproof. Anyways, I figure I will coat the entire pond with the hydraulic cement. How thick do you suggest to get a completely watertight bond? Also have you used it with a grout bag? (for between the rocks) I'm used to doing a lot of grout work.. ..but never tried hydaulic through a bag. Thanks for any and all help. |
|
| Jonas, you would want the hydraulic cement spread at least 3/4" inch thick. That could be expensive depending on how large your waterfall is. I did once cover an area of a rock spillway, about three square feet in area with HC and it worked great, no more water loss. I was thinking in your case that you just wanted to seal up the joints between the rocks?? I have used all sorts of applicators, spatulas, Popsicle sticks, putty knives of various sizes and my hands (*wearing latex type gloves)plus a wet paint brush to smooth it into the spaces. Mix it up in small batches, no more than you can use in a couple of minutes, as it sets up very quickly. |
|
| I'm thinking I will use a good mortar mix and cover the pond once. This way I can cover all the folds in the liner. Some reinforced chicken wire burried in it.Probably, about 3 inches... Then coat with the hydaulic cement. Next I will have to fight the high lime concenteration? I read on hear several choices from acid wash to a primo sealer????? Wow. this is my second pond. And i'm glad this one is in my backyard.... |
Please Note: Only registered members are able to post messages to this forum. If you are a member, please log in. If you aren't yet a member, join now!
Return to the Ponds & Aquatic Plants Forum
Instructions
- You must be a registered member and logged in to post messages on our forums.
- Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
- After posting your message, you may need to refresh the forum page in order to see it.
- It is illegal to post copyrighted material without the owner's consent.
- HTML codes are allowed in the message field only.
- No advertising is allowed in any of the forums.
- If you would like to practice posting or uploading photos, please visit our Test forum.
- If you need assistance, please Contact Us and we will be happy to help.