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Thread: What are these spots on my Brush and Vacuum?

  1. Back To Top    #1
    UnderWaterVanya's Avatar
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    What are these spots on my Brush and Vacuum?

    Pool history here: topic47425.html

    I have the pool nice and clear but I'm worried that something may be creeping in. The pool brush and vacuum are stained in a way that looks like a brownish algae is growing on them. At first I thought it was just a problem with rust or something else but the vac doesn't seem to have any metal where the stains are.

    I soaked the tools in 50/50 bleach (6%) and pool water (CYA 55) for a couple of days in an open bucket in the shade and nothing went away - if anything it got worse. It did rain during this time a couple of times but the bucket smelled about the same as when I started - no I didn't check for FC/CC's when I dumped it!

    I also see some potential issues in the pool which I will check with an OCLT tonight and if needed run up to shock levels - but the tools lack of response to the 50/50 bleach solution has me freaked out. 30000ppm of FC (calculated from 3% expected strength) should have been sufficient for most anything!

    Here are some tool pics...







    At one point I saw brown stuff accumulate on the steps - but that hasn't come back - however the color of the stains on the tools looks similar:



    Ideas on what to do with the brush and vac? They haven't been back in the pool since I determined this was going on.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Mod Squad jblizzle's Avatar
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    Re: What are these spots on my Brush and Vacuum?

    Kind of looks like there might be pins holding the bristles that are rusting to me.
    Jason, TFP Moderator
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    UnderWaterVanya's Avatar
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    Re: What are these spots on my Brush and Vacuum?

    Quote Originally Posted by jblizzle
    Kind of looks like there might be pins holding the bristles that are rusting to me.
    Now that would be a relief - and it would explain the reason they got worse when soaked. Normally the tools sit on the fence in the sun and get dried out pretty quickly.

    I forgot to post any water results:

    from this afternoon:
    FC: 6.5
    CC: 0.5
    PH: 7.5 (I have trouble with this test the Taylor kit is hard to judge)
    TA: 120
    CH: 330
    CYA: 50-60 - I'm saying 55 due to my difficulty with this test.

    I will be bringing this up a bit tonight and checking in the morning for an OCLT. But any problems in the pool might just be unrelated if what you think is true is true.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    UnderWaterVanya's Avatar
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    Re: What are these spots on my Brush and Vacuum?

    OK - now I'm at a further loss. The stains in the brush and vacuum have grown. They are now as long as each brush bristle. The two items were left in the same bucket (emptied but not rinsed) for a couple of days after I took the pictures posted earlier. Does rust act like this? It seems more like some kind of growth.

    Someone mentioned a bucket method to test for mustard algae how do I do that? On the other hand, this is pretty much an orange/brown as the pictures show - very much like rust color. Is there a way to test if this is rust - is there something likey to wash away those stains? Is there an algaecide I could try on these isolated in a bucket to see if this is an algae? Are there any algae's that would not respond to stupid high FC??? (50/50 6% bleach and pool water with CYA around 55).

    I'm not sure if I can put my brush and vac back in service or if I need to buy new until I resolve this.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Mod Squad jblizzle's Avatar
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    Re: What are these spots on my Brush and Vacuum?

    You could probably try putting some vitamin c on the stains and see if they lighten or come off. That could confirm metal.

    Posted with Tapatalk ... sorry if I sound short ... hate typing on phone
    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
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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    UnderWaterVanya's Avatar
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    Re: What are these spots on my Brush and Vacuum?

    Quote Originally Posted by jblizzle
    You could probably try putting some vitamin c on the stains and see if they lighten or come off. That could confirm metal.
    Thanks! I didn't think about that. I had heard that for pool liner stains and just didn't click. Since these are down in the bristles I'm not sure how to apply it but I'll look around and see what I can find at the Pharamcy. I'll post some pictures one way or the other.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    bobodaclown's Avatar
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    Re: What are these spots on my Brush and Vacuum?

    I'm pretty sure it's rust staining. My pool brush bristles are much uglier looking from rust staining.
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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    frogabog's Avatar
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    Re: What are these spots on my Brush and Vacuum?

    You can buy ascorbic acid at the grocery store, sometimes in the bulk spices section (if you have those). Then you could sprinkle some of that into a shallow water solution and set the tools into it. Looks like rust to me too, my brush has the same and I'm positive my pool has no algae.
    Where kids swim in 54 degree water, turn blue, and giggle happily cuz they got a POOL!
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    UnderWaterVanya's Avatar
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    Re: What are these spots on my Brush and Vacuum?

    Quote Originally Posted by frogabog
    You can buy ascorbic acid at the grocery store, sometimes in the bulk spices section (if you have those). Then you could sprinkle some of that into a shallow water solution and set the tools into it. Looks like rust to me too, my brush has the same and I'm positive my pool has no algae.
    Thanks guys - on my list for tomorrow.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    UnderWaterVanya's Avatar
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    Re: What are these spots on my Brush and Vacuum?

    Just for grins I did a non-shock level OCLT to give myself peace of mind.

    Last night at 11pm:
    FC: 6.0
    CC: 0.0
    pH: 7.8
    TA: Not measured, should be ~ 120
    CH: Not measured, should be ~ 330
    CYA: Not measured, should be ~ 55

    This morning at 8:30am:
    FC: 6.0
    CC: 0.0
    pH: 7.8
    TA: 120
    CH: Not Measured, should be ~ 330
    CYA: Not Measured, should be ~ 55

    So I'm thinking that everyone was correct and these are rust stains - they got a little fainter after washing the brush out with tap water and then brushing the pool but I think that's just because the stained water in the bristles was removed. The drips on a white metal table off the brush looked very much like rust.

    I'm stilling planning the AA test but have not had time to get the AA yet.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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