In this video Jason Hughes, pool contractor and author of popular ebook "6 Steps to Pool and Patio Success" diagnoses and fixes a plugged skimmer line on an actual pool… Pull out the filter basket and check for debris that may be interfering with water flow to the pool pump. I have tested the pool equipment and it seems to be working fine. ... What ever you use to probe the skimmer, tie it off to something solid so to not loose it in the skimmer line. If the water level in the pool has dropped below the skimmer intakes, the system will draw in air. This eliminates the suction on the blocked drain. If there is not a clog, maybe the supply line to the skimmer is not providing enough water to keep it primed. The skimmer filter is dirty. This item SkimmerMotion - The Automatic Pool Cleaner, Skimmer & Clarifier - Suction Floating Skimmer for Pools Up to 8 Ft deep - for in ground and Above The Ground Pools. Oddly enough, I capped-off the inlet line at the strainer just to see if there was an suction directly at the strainer. The skimmer filter is dirty. so long as there is no air being sucked into the system is the first rule to keep in mind. The suction hose for the vacuum has holes, or it isn't fully connected. so long as there is no … Skimmers do not have "pressure" however, they would have suction. I lifted off the top of the skimmer and noticed that the water was not moving and there was no suction. New O-Ring on DE Filter, new O-Ring/Lid on in-ground Leaf-Vac, new O-Ring on Hayward Super II pump, new diffuser gasket, new set of pump seals, new housing gasket. A plumbing clog snake may get caught in a 90 degree angle on pools cause their more of a true 90 degree angle than home plumbing. ... "Swimming Pool Pump Turns on … Plugged filters, redirecting suction by reducing closing by half pool floor isolation valve's, completely open skimmer isolation valves.Replace cartridge filters, or backwash sand filters more often. i get no suction on skimmer? The suction is generated by the pump ~ the smaller part, in size, of the circulation system at the equipment pad. IT is most likelyk you have a brewakk or gap in the suction part of the system which is letting air in, so the pump cannot maintain a suction: 1) check all hoses and filter for tight connections and for any breaks in the hoses 2) check skimmer for cracks or plugging, and make sure hose is tightly connected.