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Thread: Pump is working intermittant

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    fordsbyjay's Avatar
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    Pump is working intermittant

    My pump quit working on the weekend and I am looking for a new one. I took it apart to make sure there was nothing blocking it and it is clear. The impeller is missing a few pieces but it has been like that for awhile. If I shut the pump off and let it cool it will run for a couple minutes before clicking away then finally quitting again. My question is pump size. I read the other post on pump size but we have different pools so I started my own thread. BTW, is there any way this could be related to my switch to SWG a couple months ago?


    I can not read the old sticker to find out the pump size. I do know the feed and output lines are 1 1/2". There is only two jets in the shallow end of my pool. The pump is approx. 70' from the skimmer basket and the jets are about 40' from the pump. I read the the hayward calculations on their website and I really think I need some help here.

    My old pump was noisy as heck and I really like the idea of a whisper flow. I won't say money is no object but I do not want to buy cheap junk. If I have to spend a little more to get a better brand I have no problem doing that.
    19000 gallon inground fiberglass pool
    Hayward Pro Series Sand filter S244T 62 gal/min
    Whisper Flow WFE-2 / 011511 1/2 hspr pump
    Aqua Rite AQR Pro SWG, T15 cell for 25000 gal

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    mas985's Avatar
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    Re: Pump is working intermittant

    Unless you need high flow rates for a spa or waterfall, I would go with the lowest HP pump available. A Whisperflo 1/2 HP (WFE-2) would give you fairly good performance and have a turnover of close to 5 hours. If you want even more energy savings, go with a two speed but the minimum you can get in a Whisperflo is the 3/4 HP WFDS-3. Low speed will run at probably around 40 GPM with a turnover rate of 8 hours (4 hours for high speed).
    Mark
    Hydraulics 101; Pump Ed 101; Pump and Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, 1/2 HP 2sp pump, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    fordsbyjay's Avatar
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    Re: Pump is working intermittant

    I am confused about the two speed pumps. Do they come with a switch to select which speed or is that something extra you need to purchase?
    19000 gallon inground fiberglass pool
    Hayward Pro Series Sand filter S244T 62 gal/min
    Whisper Flow WFE-2 / 011511 1/2 hspr pump
    Aqua Rite AQR Pro SWG, T15 cell for 25000 gal

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    mas985's Avatar
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    Re: Pump is working intermittant

    In ground two speeds normally do not come with a switch but it is pretty easy to add one. Also, if you have a controller, that may be able to handle two speed wiring.
    Mark
    Hydraulics 101; Pump Ed 101; Pump and Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, 1/2 HP 2sp pump, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    fordsbyjay's Avatar
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    Re: Pump is working intermittant

    Quote Originally Posted by mas985
    A Whisperflo 1/2 HP (WFE-2) would give you fairly good performance and have a turnover of close to 5 hours. .
    I have decided to go with the pump you recommended. My timer is all rusted up and I need a new one. Is there a specific one you would recommend? Can I buy just the replacement guts? My pump is wired for 220v.

    thanks,
    19000 gallon inground fiberglass pool
    Hayward Pro Series Sand filter S244T 62 gal/min
    Whisper Flow WFE-2 / 011511 1/2 hspr pump
    Aqua Rite AQR Pro SWG, T15 cell for 25000 gal

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    Mod Squad Bama Rambler's Avatar
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    Re: Pump is working intermittant

    It depends on your timer & model whether you can buy "just the guts". Most Intermatic timers you can buy just the mechanism. If you'll post your brand and model number we can tell you whether the parts are available. If you buy a new one I'd recommend an Intermatic T101P3. It's a 24 hour timer in a plastic case.
    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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    mas985's Avatar
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    Re: Pump is working intermittant

    The type of timer you choose would also depend on if you decided to go with the two speed or not. Given your plumbing, it might not be a bad idea.
    Mark
    Hydraulics 101; Pump Ed 101; Pump and Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, 1/2 HP 2sp pump, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    fordsbyjay's Avatar
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    Re: Pump is working intermittant

    The timer looks like an Intermatic unit in a metal case. It is old and I am not sure of the part number but it looks just like the TP103. We have always had so many algae problems in the past we had to run it all the time. Now that I have converted to SWG and gained incredible knowledge (from this site) on how to balance the pool properly my thought was to just buy the single stage pump, install a new timer and run the pool pump less hours/day. This would be the least amount of money right now and I can run the pump 1/2 what I have been doing in the past saving me money as well.

    I'd recommend an Intermatic T101P3
    Wouldn't I need the T104P3 timer for 240v?
    19000 gallon inground fiberglass pool
    Hayward Pro Series Sand filter S244T 62 gal/min
    Whisper Flow WFE-2 / 011511 1/2 hspr pump
    Aqua Rite AQR Pro SWG, T15 cell for 25000 gal

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    Re: Pump is working intermittant

    When the contacts failed on my Intermatic mechanical timer, the cheapest way to replace it that I found was with a 240V water heater timer from Home Depot (Called The Little Gray Box???). The only difference I saw between it and the one it replaced was that the one I bought didn't have a switch to control a pool heater. I don't have a heater anyway, but it appears that moving the switch from the old timer to the new one is fairly simple. Anything for a pool seems to have a ridiculous price attached, as if only millionaires have pools...

    Pull the water heater timer out of it's box and install it in your pool timer box. Voila! Cheap fix.
    26,000 Gallon Gunnite IGP
    2 HP Challenger High Head Pump
    60sf Nautilus DE filter
    Polaris 280

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    fordsbyjay's Avatar
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    Re: Pump is working intermittant

    Quote Originally Posted by HarryH3
    When the contacts failed on my Intermatic mechanical timer, the cheapest way to replace it that I found was with a 240V water heater timer from Home Depot (Called The Little Gray Box???). The only difference I saw between it and the one it replaced was that the one I bought didn't have a switch to control a pool heater. I don't have a heater anyway, but it appears that moving the switch from the old timer to the new one is fairly simple. Anything for a pool seems to have a ridiculous price attached, as if only millionaires have pools...

    Pull the water heater timer out of it's box and install it in your pool timer box. Voila! Cheap fix.
    Thanks for the tip!
    19000 gallon inground fiberglass pool
    Hayward Pro Series Sand filter S244T 62 gal/min
    Whisper Flow WFE-2 / 011511 1/2 hspr pump
    Aqua Rite AQR Pro SWG, T15 cell for 25000 gal

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