I noticed that my Spa wasn't heating up well, it was getting warm, even hot but not has hot as it should. The heat unit is a couple years old and it is working. The pump fine is working and the water is moving well when turned all the way on.
What I did notice is that I removed the three canister filters I notice that with the filters off the pull/suction where the filters screw in is faint. What I've always found in the past is that this suction is really strong, not now.
Trying to see what would cause this to not be strong? Not sure if its a blockage or not. Any suggestions would be helpful.
