[chesie]

Hope I put this in the right forum.

Two part question:

1. What kind of luck have you had using pond liner tape for seaming 2 liners together...someone metioned a liquid version.

2. What steps would you take on a liner previously installed to clean it prior to seaming. This is for a pond we installed a few years ago that the client now wants to expand.


Thanks

[Stonehenge]

I've never had the chance to try to seam old liner to new, but have seamed two new pieces of EPDM. The only hard part is keeping the wrinkles out of a long run.

When we do it I like to double-seam it - one piece of the 4" double stick stuff sandwiched between the two pieces, then another on top, straddling the edge of the top piece. We then put a strip of liner over that, just to cover up the sticky side on top.

For an old piece, I might use a mild detergent, and then just make sure everything is warm and dry.

[jwholden]

I've never done it, but I've seen it done at an Aquascape build a pond day. There was a jug of some pretty stinky chemical poured on the seam first to clean it, than some tape with a paper wrap that you would peel off. Might want to call them and ask how to go about doing it on an aquascape pond you installed, they seem very helpful.

If the pond you are making larger isn't too big you may want to consider taking all the stone out of it and installing a new liner to start. You will end up removing a lot of the fill stone and gravel to get enough working room to seam the two pieces together anyway.

Just a thought.

[chesie]

Thanks for the replies guys-

The original thought was to remove the original liner but it has a stream running into it that we put a pretty good overlap on it and I really don't want to go that far and I don't think the client wants to pay.

LOL. But it felt good to get a big I told you so on this one. You know the "you will be calling me in 2 years to make it bigger"...I think she got it down to the day almost It did give us a bit of leverage this time around "Oh that is a bit more than i was thinking"......"mam- do you want have to call me back in 2 years to make it bigger"

[Bill Schwab]

If you go to ABC roofing supply (they are ab ink 500 company located all over the US, you can get 45 or 60 mil liners from 10 to 30 feet wide, and however long you need. Ask them at the counter about seeming glue, and they will set you up. This glue has a similar composition to tire patch glue, you brush it on, then take a 3" diameter steel roller on a flat surface to roll it together. I usually use streets or parking lots. Have a couple guys help you hold the rubber straight and lap about 3" over the next piece. Let it harden off and install the liner.

By going to the direct source for rubber, you can get more for your money.