If this already a problem, bleach will kill the mold to let water flow. if you got dust,fiber in there, I would simply change out the plastic pipes. It is cheaper than blow the air which is really a last one you might try.You have to ask, how much pressure all you joints will tolerate.
:) I never allow such situation to occur in the first place.
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• If your pressure is higher than 100 lb per square inch -monkeyboy- ♂ (222 bytes) () 08/03/2012 postreply 15:33:12