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Thread: Pentair Aqualumin III rust issues

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    Pentair Aqualumin III rust issues

    My PB is giving me a new Aqualumin III becuase the one I had installed in June is totally rusted. It looks like the small screws in the back were either not stainless or a very poor stainless steel. I'm going to take the light from him but not sure if I will install it, I was looking at other options and found these on eBay:

    http://www.ebay.com/itm/Resin-filled-le ... 1e728f67c4

    Except for six small screws on the back that I would change out with high quality stainless its all plastic, just wondering if anyone has installed one of these. I'm already aware it will be much dimmer, but we didn't use our current light all season so its really not big deal. I'm also aware I will need to wire in a 120v to 12v transformer.
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    Chris K.
    -------
    16' x 32' ICF IG Pool
    Plastimayd 28mil Lancashire liner
    3' shallow end, 5' deep end
    Pentair - Mastertemp 250, Clean and Clear Plus 420, 1HP SuperFlow, 250w AquaLumin III nicheless light
    SGS 3000 Salt Chlorine Generator
    Intermatic Pool timer
    Pool Cover Specialists automatic pool cover

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    Mod Squad JohnT's Avatar
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    Re: Pentair Aqualumin III rust issues

    You may want to have an electrician check out your pool. Rapid corrosion of a product designed for pool use is almost certainly a sign of a wiring issue or ground current in the water.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Re: Pentair Aqualumin III rust issues

    Time to visit this again. I don't think its a wiring or ground current issue. The bottom drain and skimmer screws didn't rust at all, just the ones on the back of the light. On the new light I can see they are not stainless steel either, I think I will just trying changing the screws and hope for the best. BTW I have a salt water pool so that would aid in metal corrosion.
    Chris K.
    -------
    16' x 32' ICF IG Pool
    Plastimayd 28mil Lancashire liner
    3' shallow end, 5' deep end
    Pentair - Mastertemp 250, Clean and Clear Plus 420, 1HP SuperFlow, 250w AquaLumin III nicheless light
    SGS 3000 Salt Chlorine Generator
    Intermatic Pool timer
    Pool Cover Specialists automatic pool cover

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    Mod Squad Bama Rambler's Avatar
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    Re: Pentair Aqualumin III rust issues

    It doesn't look like there is any way to bond that light (it may be double insulated) so the screws need to be stainless or they will rust even in a non-swg pool.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: Pentair Aqualumin III rust issues

    Not an expert but from past experience the only reason a stainless steel screw corrodes is from stray current. I believe that is the correct reason. Put an sacrificial anode on and run it to a ground rod.
    Over 30 years in the pool business
    We build vinyl, fiberglass, stainless steel pools
    Certified in Hydraulics

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    Re: Pentair Aqualumin III rust issues

    I am so glad that you posted this...I have been looking for a replacement for my )(*(^(*&*()&*%^%^^#^&% Aqualumin light for ages. I am replacing my liner right now so I think I may give these a shot!
    Science and Math Teacher
    Owner - SPS - part time pool biz
    18x36 IG Vinyl, 23000 Gallons with Jacuzzi (the bane of my existance) pumpworks
    Polaris 280 w/ PB4 booster

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    Mod Squad JohnT's Avatar
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    Re: Pentair Aqualumin III rust issues

    Quote Originally Posted by msumoose
    I am so glad that you posted this...I have been looking for a replacement for my )(*(^(*&*()&*%^%^^#^&% Aqualumin light for ages. I am replacing my liner right now so I think I may give these a shot!
    I wish I'd never even heard of Aqualumin lights. My first one was defective from the factory and it was impossible to change the bulb. The plastic seal that goes against the liner has failed on the second one at just over a year old. Unfortunately with no niche, you don't have any options to switch to another brand easily. Pentair wouldn't even respond to my emails about the first one when I included clear pictures showing them the manufacturing defect.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Re: Pentair Aqualumin III rust issues

    My seal failed too. I have just left it for 3 years or so. I miss not having a light on my pool.

    Since I am doing the liner, I am looking to eliminate it or to do something else.
    Science and Math Teacher
    Owner - SPS - part time pool biz
    18x36 IG Vinyl, 23000 Gallons with Jacuzzi (the bane of my existance) pumpworks
    Polaris 280 w/ PB4 booster

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