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Thread: Overwhelmed by small spiders

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    Overwhelmed by small spiders

    We have become overwhelmed lately with small spiders that like to hang around our pool steps and the edges of our in ground. The are yellow-green (like a house spider) and can walk on the water. No matter how many I crush or scoop out of the pool, more come the next day.

    Does anyone have advice on how to reduce this? I have read conflicting info on the effectiveness of borates. I was also considering putting down a insecticide in the grass around the pool since I assume they are coming from there.

    FYI, this is an in ground swg in central PA.
    21,000K IG Vinyl Free Form, 1.5 HP Pump, Sta-Rite filter, 5 jets, 2 drains, SWG, 200K BTU gas heater

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    svenpup's Avatar
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    Re: Overwhelmed by small spiders

    A well balanced pool is less likely to attract insects, but you may get them anyway. How are your numbers? Do you have algae at all?

    Can you post a pic? I wonder if they are water striders.

    TFP Method Advanced Intermediate
    • 17,500 gallons - In Ground - Plaster - Hayward Swimclear 3020 Cartridge Filter - Sta-Rite Max-E-Glas Main Pump upgraded with A.O. Smith B2980 E-Plus New Centurion Two-Speed Motor - Polaris 280 Cleaner with Polaris PB4-60 Booster Pump - TightWatt2 Timer - Taylor K-2006 Test Kit - Pool Pilot Digital Nano SWCG

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    Re: Overwhelmed by small spiders

    I don't have a pic, but they don't look like that and they are definitely spiders.

    I think my levels are good:

    FC 2
    CYA 70
    TA 75
    PH 7.5
    21,000K IG Vinyl Free Form, 1.5 HP Pump, Sta-Rite filter, 5 jets, 2 drains, SWG, 200K BTU gas heater

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    svenpup's Avatar
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    Re: Overwhelmed by small spiders

    Your FC is a little low. For a SWCG and CYA of 70 you never want FC below 3. I would try to bump your % a bit. Maybe target 5ppm and see if they go away.
    TFP Method Advanced Intermediate
    • 17,500 gallons - In Ground - Plaster - Hayward Swimclear 3020 Cartridge Filter - Sta-Rite Max-E-Glas Main Pump upgraded with A.O. Smith B2980 E-Plus New Centurion Two-Speed Motor - Polaris 280 Cleaner with Polaris PB4-60 Booster Pump - TightWatt2 Timer - Taylor K-2006 Test Kit - Pool Pilot Digital Nano SWCG

    Helpful Links: Pool School, BBB for Beginners, How to Shock (hint...it's a process not a product), Chlorine/CYA Chart, Jason's Pool Calculator

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    Re: Overwhelmed by small spiders

    OK, Here's something retarded, but go with me for a minute. When I lived in Oklahoma, all the good barbecue competitors started their fires with a weed burner. It's this thing you hook up to a standard grill propane tank, light with a welder lighter, and it puts a thousand BTUs out the bidness end. So I had to keep up with the Bubbas (pick up one at Lowe's).

    I had a massive spider problem on my porch (stucco, NOT wood), since every other critter (food) was hanging out by the light. I sprayed and swept, leaf blew, poisoned, and did everything to get rid of the insects, to no avail. One night, enchanted by the effects of a few cool ones, I decided to give them a shot from the weed burner.

    That was the end of my bug problem of any sort. Ants, gone. Spiders...gone. Big swarm of mosquitoes hanging out by the porch when I'm trying to entertain.....gone (now THAT'S entertainment!!)

    There's something about the smell burned bugs to keep the rest of them away. I kid you not!! Only about once a year would the spiders start to reappear, then WHOOSH .

    Two weeks ago I did a bunch of chicken legs on the grill and forgot to put the grease catch in. The grease dripped out and inside of an hour I had a BILLION ants under my grill. WHAMMO . Gone. Not a one came to follow.

    It takes FAR less heat to scorch an insect than it does to light anything on fire. A quarter of a second blast scorches bugs, eggs, webs, nests, anything organic. Don't hit the plastic or glass, and don't get the heat near any plant material (remember the name "WEED burner").

    Take it for what it's worth.

    Jim.
    In ground Pool, 13,000 gallons, Cartridge filter (big), Single pump, Hayward Goldline Aqua Rite
    Central Florida
    Miller Lite
    Tony Stewart

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    Re: Overwhelmed by small spiders

    Here's a (blurry) picture of some of them. It's getting dark and my phone isn't the best camera.

    Anyway, after cleaning out the pool just 2 hours ago, I already had a half dozen. The attached pic is of 2 of them. They are light brown, perhaps slightly green. They move fast and can walk on teh water. They seem to struggle crawling up the sides of the plastic steps. If you splash them, they ball up (I guess to hold on to an air bubble) and then stretch out again once they are safe.

    I've also noticed a lot of really small bugs or mites of some sort. Perhaps the spiders are going there to eat those?

    Either way, I've upped my SWG a little to increase the FC. I also haven't cut the grass around the pool in a few weeks because it wasn't growing due to lack of rain. We've had a ton of rain recently and I'll cut it back and perhaps drop some Scotts fertilizer w/ summerguard insecticide around the pool to help kill off any nests in the grass.
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    poolgirl22's Avatar
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    Re: Overwhelmed by small spiders

    Are you taking pics in my pool???

    Seriously, I've had these for several years off and on. This, by far, is the best year..even though we still have them.

    In the past I've sprayed some kind of broad spectrum bug spray for yards under the deck and in the surrounding grass and it has somewhat helped things....but really, don't you think 7-9 ppm of FC would kill these things???
    Backyard pool-less, but used to be.....
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    Re: Overwhelmed by small spiders

    There are also granular products at Lowe's and such that you can disperse around your home and lawn that cuts down on fleas and spiders and assorted insects. Check these out. We put this around our home and underneath the house every year to cut down on pests. Just read the labels about pets that may come in contact with it. It is usually small enough that they can't really eat it, and it dissolves with rain or irrigation.
    18x52 Ultra Frame with 1600 gph sand filter and intex skimmer

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    mickey4paws's Avatar
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    Re: Overwhelmed by small spiders

    You can also use food grade diatomaceous earth to kill them. The only problem is when it rains, you have to reapply. Last year we had a problem with some kind of bug (backswimmer, I think they're called). I would skim them out of the pool and quickly dump them in a bucket of Dawn dish soap mixed with water and that killed them immediately.
    IG 12' x 39' - 20k Gallons - Vinyl Lined - StaRite Cristal-Flo II 26" Sand Filter - Hayward SuperPump 1 hp - Dolphin Dynamic autocleaner - Lochinvar Energyrite gas heater - Aqua Rite SWCG T-15 - TF100 Test Kit - Skimlite Duallly 9016 pole (great pole)

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    svenpup's Avatar
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    Re: Overwhelmed by small spiders

    Quote Originally Posted by mskovrinskie
    ...perhaps drop some Scotts fertilizer w/ summerguard insecticide around the pool to help kill off any nests in the grass...
    Be careful...you don't want any fertilizer in the pool...not good for chlorine demand.
    TFP Method Advanced Intermediate
    • 17,500 gallons - In Ground - Plaster - Hayward Swimclear 3020 Cartridge Filter - Sta-Rite Max-E-Glas Main Pump upgraded with A.O. Smith B2980 E-Plus New Centurion Two-Speed Motor - Polaris 280 Cleaner with Polaris PB4-60 Booster Pump - TightWatt2 Timer - Taylor K-2006 Test Kit - Pool Pilot Digital Nano SWCG

    Helpful Links: Pool School, BBB for Beginners, How to Shock (hint...it's a process not a product), Chlorine/CYA Chart, Jason's Pool Calculator

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    marthas_ear's Avatar
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    Re: Overwhelmed by small spiders

    Quote Originally Posted by mickey4paws
    You can also use food grade diatomaceous earth to kill them. The only problem is when it rains, you have to reapply. Last year we had a problem with some kind of bug (backswimmer, I think they're called). I would skim them out of the pool and quickly dump them in a bucket of Dawn dish soap mixed with water and that killed them immediately.
    YES! DE sprinkled at grass edge is good for grass too.
    Regards,
    Martha in Texas
    17K gl-15'X34' IG, Fiberglass, Pentair: Intelliflo VS 3HP pump, PAL 2000 underwater lights, DE60 filter, Intellichlor IC 20SWG, Poolvergnuegen Suction Pool Cleaner2009 build date; TC100

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