FX5 won't empty with pump
Hi - I've had this problem for years, and it's driving me crazy. The manual says you can use the pump to empty the canister, and there are step by step instructions to do it -- make an outflow hose that reaches a drain, unhook the usual inflow/outflow hoses, put the new hose on the OUT connection, and with the valve closed, plug the pump back in. Then you open the valve -- and it should pump the canister out.
Here's what happens to me -- it pumps about 10% of the water out of the canister, and then the water stops flowing. When I unplug it and start it again, some water overflows out of the IN connection. After a few times of stopping and starting, all with no additional water flow except a little out of the IN side and onto the floor, I give up and lug the full canister to the bathtub.
I can't use the purge valve to empty the filter when it is under the tank, because the drain is uphill from there.
Anyone have any ideas how to fix this?