why does my pool return have very low flow? Also, how do you check for blockages to know if something is clogged, reducing the return flow? I'm just a mom trying to fix this as I am tired of $150.00 service calls. Can I fix this or check for clogged parts on my own? Husband used to do all this but passed away last summer, so this is all falling on me now and would like to know if I can remedy the problem on my own without electrocuting myself! LOL! If anyone has any ideas for me I would extremely appreciate it! Thanks!