Instead of a double pipe, I cut 1-foot oversized sections and threaded about a dozen sections over the intake pipe. Holes can't be worn through the pipe, as those loose sections rotate—rather than be abraded by the rocks.
Quote:
Originally Posted by bilproject
Check your line for wear where it crosses the rocks into the water. Wave action can cause holes to wear into the plastic line. The problem usually shows up when the holes are no longer covered with water and air is sucked in when the pump runs.
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Years ago, it used to be
wave action, but in the last few decades, the "action" has become violent
wake action.
