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Thread: Should skimmer opening have alot of suction for cleaning up flies / gnats

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    Question Should skimmer opening have alot of suction for cleaning up flies / gnats

    Hi everyone. I'm new to the in ground pool game and not sure if the skimmer opening should be have a lot of power suction for bringing in dead gnats, small black flies that are floating around the pool edges.

    I noticed after heavy rain past couple of days a lot of gnats have been floating 5-6 inches outside of the skimmer opening. Hundreds of them, smaller than an ant size, just floating and not actually inside the skimmer opening. Is this normal or should the skimmer opening actually be sucking them inside?. I can clean them up from the pool with a pool net just wondering if this is pretty normal.

    Also when vacuuming the bottom of the pool it does pick up the dirt so no issues there.

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    Mod Squad jblizzle's Avatar
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    Re: Should skimmer opening have alot of suction for cleaning up flies / gnats

    Does your skimmer have a weir? If not, that could be your problem.
    Jason, TFP Moderator
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    Re: Should skimmer opening have alot of suction for cleaning up flies / gnats

    Thank you. I just checked and I dont see a skimmer weir door. Is their a universal weir that i could buy or what do you recommend since I don't know what brand or size to get?

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    Mod Squad jblizzle's Avatar
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    Re: Should skimmer opening have alot of suction for cleaning up flies / gnats

    There are universal ones that have spring loaded feet to hold them in place. The ones I have seen seem awfully flimsy though. IMO, would be best to get the one that should be on your skimmer, but that is a little more difficult to figure out.

    Just measure the width of the opening and see if you can see any places where screws might go.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: Should skimmer opening have alot of suction for cleaning up flies / gnats

    SORRY. My mistake. I should of checked better.. but their is a skimmer door. It only goes down about 3 inches by itself. To open the door all the way down i have to do it by hand. It's like there is not enough water pressure to push the door all the way down

    Is this about right?

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    Mod Squad jblizzle's Avatar
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    Re: Should skimmer opening have alot of suction for cleaning up flies / gnats

    It should not open all the way ... the point is to force the water from the surface into the skimmer. So it should only draw back and down a few inches.

    Do you have any other suction lines? A floor drain, of so, how is it plumbed? Maybe there is a valve for the floor you should close to force more skimmer suction?

    When was the last time you cleaned your filter?

    Please add your pool details to your signature as described HERE as it will help us help you.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
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    Re: Should skimmer opening have alot of suction for cleaning up flies / gnats

    Here's my equipment information

    Pentair 1 HP (single speed) Model# #196238
    Vac-Alert SVRS
    Sta-Rite system filtration Model: PLD70
    Pentair Model 320 automatic chlorine Bromine In-Line feeder

    Everything seems to be working right except it feels like the skimmer does not have a lot of suction power
    Bunch of small flies/gnats are always just floating outside of the skimmer instead of inside the skimmer when the pump is on.

    Not sure if it's cause maybe their is a leak, need to get more horsepower or need to move the valve in a certain direction?

    I keep my valve in the middle but i also noticed when i moved the black valve by the skimmer to the left it gave more power to the skimmer at front of pool and started to give a little better suction






    [imghttp://i62.tinypic.com/zvvf5l.jpg[/img]


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