jvc66
this is what were were talking about but with pics. Jc used the existing pond box's 3/4 fitting and tubing (pretty sure) so he used his pumps intake size and reduced down to the pond box's fitting. I couldnt find anything or anyone that used this method and hes not active anymore so i could lnt run this by anyone but i wanted to use the 1.5 intake on my pump something bothered me about reducing it to 3/4...who knows maybe no big deal but here are the pics.
Wanted to make a hole that fit 1.5 plumbing so using this chart i used a 2 3/8 hole saw and sloooooowly cut the hole.
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Then literally took the pump and box box to home depot and camped out in the plumbing dept. Found that a 2 inch trap adapter fit perfectly and the threaded end could be tightened to hold it in place (alsowrapped a bunch of teflon tape for a more snug fit.
Then used a 2x1.5 inch bushing. A small the length of pipe 1.5 inch will connect the pond box to the slip end of the 1.5 inch adapter threadxslip adapter on the pump.
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You may find a simpler solution just mess around with a buclnch of different fittings.
Also pluggrf the intake on the box
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