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Is there any problem with using black rubber hose for my return? It is more flexible and won’t let light through. But don’t want to leech anything in my system. Let me know.
thanks
thanks
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Must have a special coating on the rubber? Is your pond fresh water? I would think salt water may deteriorate some forms of rubber.pond liners are made of gates rubber, same stuff as an inner tube. my 5000 gal pond has been in 3 yrs with the same koi