I just moved into a house with a green and cloudy pool and the pool uses a Baker Hydropak skimmer with the filter under the basket. It doesn't seem very efficient. When I remove the filter, the dirty water contained therein falls back into the skimmer and some goes out into the pool. After I clean the filter and reinstall, all that dirty water gets sucked into the pump and out the jets. I do not like this filter. Near the pump is a cylinder with a cap which I believe is a tri chlor tablet dispenser. I wonder if I can remove this dispenser and replace it with a cartridge filter and eliminate the filter in the skimmer? I will post photos shortly.
I ordered a test kit and I will post results upon arrival.