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- Dec 23, 2014
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I have a surplus of 2" schedule 40 yet it says non pressure on it. as long as its between the pump and the TPRs I should be able to use it? Just don't use it between a pump and a pressurized bead filter or between a pump and a sand gravel filter?
On a vertical wall that dives down into the pond I want the stone to go about 6" below water level with the pond liner in behind it. can a 4" lip to stack the rock 3 feet high be enough? it seems that even though cement supposedly sticks to pond liner that if/when the pond liner pulls away from the cinderblocks behind it that all the stone will fall into the pond. what keeps the back of the pond liner stuck to the cinderblocks? also what keeps ice from tearing apart the rockwork portion that is submerged?
On a vertical wall that dives down into the pond I want the stone to go about 6" below water level with the pond liner in behind it. can a 4" lip to stack the rock 3 feet high be enough? it seems that even though cement supposedly sticks to pond liner that if/when the pond liner pulls away from the cinderblocks behind it that all the stone will fall into the pond. what keeps the back of the pond liner stuck to the cinderblocks? also what keeps ice from tearing apart the rockwork portion that is submerged?