We successfully set up our 12'x24'x52" rectangular intex for the first time. This is also our first year using a sand pump. The intex came with a 2100GPH sand pump. I set up the pump using HTH sand, backwashed, rinsed and started the pump. I have the skimmer that hangs over the edge of the pool. On this particular pool model, there are 2 outlets leading to the pump, and one inlet leading from the pump back to the pool. On the first day, there was weak pull into the skimmer, but there was some slow movement around the pool and the skimmer collected crud. The next day, there was no water being pulled into the skimmer. The pressure coming back into the pool seemed similar to the first day. I backwashed, rinsed, and restarted the filter. The suction was slightly improved. The same thing happened the following day, but the suction into the skimmer didn't improve all that much after backwashing. I know from prior experience that the filter pumps that come with intex pools seems under-powered. I'm not at all against buying a larger pump (in which case I would love an opinion on if I should go for the 3000GPH or the 2800GPH.) But, am I missing something, does this seem broken, or is it just too small for the pool? Is it normal to have to backwash daily? Thanks for your help!