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Thread: Tank Body Hairline Crack

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    Tank Body Hairline Crack

    I've identified my pump as a "Sta-Rite Max-E-Glas II Pump, High Head, EE, Full Rated, 2 HP, 115/230v (P4E6G-189L)" (http://www.poolplaza.com/P-STA-10-402-P.html)

    I have 2 hairline cracks in the "Tank Body" which can be replaced for $153.24. The hairline cracks are leaking minuscule amounts of water, so I'm not sure if I need to worry about this yet?
    The hairline cracks are near the top of the tank body, near each side of the output connection.
    15k gal, Pebbltec. Built in 2004. 2 HP Pump, Cartridge Filter, Hayward SWG, Hayward Navigator Cleaner, TF-100 / Orlando, Florida

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    JasonLion's Avatar
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    Re: Tank Body Hairline Crack

    You will want to replace the tank body eventually. In many cases it gets worse slowly, so you might have some time before you need to replace it, though there is no guarantee on that.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Tank Body Hairline Crack

    Does it make sense to replace the tank body, or should I take a look at a new variable speed pump at some point?
    How hard of a DIY job is replacing the tank body?
    15k gal, Pebbltec. Built in 2004. 2 HP Pump, Cartridge Filter, Hayward SWG, Hayward Navigator Cleaner, TF-100 / Orlando, Florida

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    Re: Tank Body Hairline Crack

    My Challenger pump housing developed a crack a couple of summers ago. Attempts to seal it from the outside failed. I was finally able to stop the leak from the inside. I sanded the crack area to bare fiberglass and then covered it with a strip of fiberglass cloth saturated with JB Weld epoxy and smoothed it out and let it cure. It hasn't leaked a drop since.
    26,000 Gallon Gunnite IGP
    2 HP Challenger High Head Pump
    60sf Nautilus DE filter
    Polaris 280

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    Re: Tank Body Hairline Crack

    My heater's manifold was cracked by freeze. I patched it with west system g flex with good success

    Lazy-L shaped pool and a spa. 22.5k gallons. Pentair VS pump. Pentair cartridge filter CCP520. STA-Rite SR400NA heater (400K BTU). Leuder limestone coping. Pebble sheen (blue granite) Wooden deck.

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    Re: Tank Body Hairline Crack

    The original crack that I spoke about above is getting worse, now I have a small solid stream of water shooting out! Going to have to do something sooner or later now.

    Questions:
    1 - Do I need a 2HP Pump, what can I read to help determine if I should get Variable Speed vs single speed. I'm not sure I have any of the features that might benefit from a variable speed?

    2 - I'm eventually going to be getting solar heating, so please keep that in mind. What are some good pump options?

    3 - If I do get a new pump, is installing it a DIY job?

    4 - Should I get a new pump, or replace the broken part for $200. The pump is very old, so I'd hate to throw good money at bad.
    15k gal, Pebbltec. Built in 2004. 2 HP Pump, Cartridge Filter, Hayward SWG, Hayward Navigator Cleaner, TF-100 / Orlando, Florida

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    Mod Squad jblizzle's Avatar
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    Re: Tank Body Hairline Crack

    1. I see no need for anything close to a 2HP pump. I would suggest a smaller 1HP 2-speed pump (like the Superflo).

    2. I run solar with my 1HP Superflo (How big of an array and how high will it be?)

    3. Depends on your comfort with PVC and electricity. It is not hard, but there is a learning curve.

    4. Getting a smaller 2-speed will allow you to save money on electricity for the life of the new pump.
    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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  8. Back To Top    #8

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    Re: Tank Body Hairline Crack

    How are the 2 speeds controlled and what are they used for.
    15k gal, Pebbltec. Built in 2004. 2 HP Pump, Cartridge Filter, Hayward SWG, Hayward Navigator Cleaner, TF-100 / Orlando, Florida

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    Mod Squad jblizzle's Avatar
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    Re: Tank Body Hairline Crack

    The pump I mentioned came with a manual switch on it. You would run the pump on low speed for general filtration and manually select high speed for vacuuming or backwashing etc.

    On low they move 1/2 the water for 1/4 the power cost ... so even doubling the run time on low is a 50% electrical savings.

    Alternatively you can add a timer to automatically switch speeds everyday, but that is not usually needed.
    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: Tank Body Hairline Crack

    1. I replaced my functional 2hp pentair whisper pro with intelliflo vs and did not look back. I run mine 24/7 at 1450 rpm (200 Watts).
    2. It depends how tall the solar system will be mounted from the pump. A low speed in two speed pump may not provide enough flow. In order to retain the heat, it is best to use solar cover at night. Considering the upfront equipment cost and additional power cost (higher pump speed), solar system may not always be a good choice. A simple solar cover may be a more cost effective solution.
    3. Getting a new pump with the same layout will be an easy diy job. For example, pentair whisper pro and intelliflo have the dame wet end.
    4 i would get a whole new pump and use the leaky one as backup

    Lazy-L shaped pool and a spa. 22.5k gallons. Pentair VS pump. Pentair cartridge filter CCP520. STA-Rite SR400NA heater (400K BTU). Leuder limestone coping. Pebble sheen (blue granite) Wooden deck.

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    Mod Squad jblizzle's Avatar
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    Re: Tank Body Hairline Crack

    Quote Originally Posted by scott_home View Post
    1. I replaced my functional 2hp pentair whisper pro with intelliflo vs and did not look back. I run mine 24/7 at 1450 rpm (200 Watts).
    This is a waste of money. First the Intelliflo is most efficient around 1000rpm, so try that and save more. Second, usually 4-6 hours is plenty of run time even at that low speed, easiest way to save money is to not run the pump.

    Quote Originally Posted by scott_home View Post
    2. It depends how tall the solar system will be mounted from the pump. A low speed in two speed pump may not provide enough flow.
    Solar heating is most efficient at higher flow rates. Usually you will not want to run solar on low speeds. My automation only runs the solar on high and when solar is not needed it runs on low.

    Quote Originally Posted by scott_home View Post
    3. Getting a new pump with the same layout will be an easy diy job. For example, pentair whisper pro and intelliflo have the dame wet end.
    Except those pumps use a screw in fitting and not unions, so there is still pipe work that needs to be done. The Superflo uses union fittings on the pump so it is easy to remove if required.
    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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  12. Back To Top    #12

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    Re: Tank Body Hairline Crack

    If i run it at 1000 rpm, there is not enough skimmer action

    Lazy-L shaped pool and a spa. 22.5k gallons. Pentair VS pump. Pentair cartridge filter CCP520. STA-Rite SR400NA heater (400K BTU). Leuder limestone coping. Pebble sheen (blue granite) Wooden deck.

  13. Back To Top    #13
    Mod Squad jblizzle's Avatar
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    Re: Tank Body Hairline Crack

    Quote Originally Posted by scott_home View Post
    If i run it at 1000 rpm, there is not enough skimmer action
    Got it. Just wanted to be sure you were aware.
    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
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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