Originally Posted by
axton
Yes you can make a moving kaldness tank out of 45 mil rubber liner, my liner filter 15ft long and contains 1100 US gallons this tank is not full of k1, 1/3 is k1 and the other 2/3 are matts
The bottom should be slopped because the debris will go into the bottom drains, I have plexi glass with small holes suspended above the drains so when I flush the drain the k1 wont escape, my filter has been working for years with no problems.
for my filer I use the diaphragm pump, since my filter is smaller than 1500gallons, my pond and filtration is 7300gallons in total. If your filter is 1500 gallons you should use 3 or 4 diaphragm pumps, or air blower because youll need lots of air for that big of filter
Picture I posted is of one part of my filter, which usually contains the k1 media