I have never tried to vacuum pool. This past week or so we got lot of rain and I got a layer of algae onto the bottom of pool. my chlorine level dropped, but I have gotten the pool blue again. My issue is I hooked the hose up to my brush head, I put that in the water and put the other end of the hose to the water inlet where the water pushed out all the air till the bubbles stopped. Then I put that end into the skimmer and tried to vacuum up some of the algae on the bottom. There does not seem to be a lot of suction. it also seems to that when i do this the water level in the pump drops a lot. Is there something that is wrong or do i need to do some type of troubleshooting and where would you start. Thanks ladies and guys