Originally Posted by
bobbd
Hey everyone. I am putting in 2 bottom drains i made pond 2 ft deeper now its 5 1/2 ft. Deep and took out the bowl shape which adds more water but its getting late in the year and cold ,koi are in an intex pool in yard so im hoping to get underlayment in and liner the problem is i am goin to upgrade to drum filter in spring so i only have 1 cetus sieve with a 4 inch inlet which will run all winter but the other bottom drain has no filter to connect to so im looking for ways to seal the drain off b4 i add water so there will be no water in the koi toilet or 4 inch pvc runnining pond im afraid if theres water in pipe and toilet without movement it might freeze amd burst pipe or toilet. Any ideas