Hi folks. I'm new and learning top. I have a Coleman 18x48 steel frame above ground pool. Have a 2800 gph sand filter and salt water generator. I am going to order a t100 tomorrow for testing. I'm having a bit of an algae problem and added bleach 4 days ago and have been sweeping daily. I'm still getting mild algae formations on sides and bottom. There is also a LOT of floating debris and bugs in the water. My filter has been running overtime since bleaching and still lots of debris. My question is... is my sand filter working? I can't feel much suction on the intake valves but there is plenty of water coming back through my outflow valve. Is there something else I should be doing to get rid of the larger debris? (Yes, I use the net to get out what I can daily) Skimmer?