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Thread: Want to replace pump motor - still have some questions

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    Want to replace pump motor - still have some questions

    I currently have the pump on the link below. Home is new to me and i already did some work removing a terribly outdated salt chlorinator. Besides the stains in the pool (ive been told I HAVE to have it re-plastered as a chemical cleaning will not do the trick). I am figuring out how to keep this pool clear and chemically balanced from browsing this site!

    What I am wanting to do is move to a lower HP motor to run for longer periods of the day. The current motor is an ST1152 and is expensive to run for more than 6-8 hours in a day. With the heat around here in the summer and the debris (the people who put the home in surrounded it with messy trees!!) I need to have this thing running more often and its too **** expensive.

    What I cannot seem to figure out is what motors I could potentially move to. Its an 18,000 gallon pool and from what I am seeing I do not need this massive 2hp motor.....I could run a 1/2 or 3/4 motor for most of the day for less money. The vacuum I use is a suction type and I assume that its suction would be limited as I lower the HP of the motor......is this correct?

    I appreciate any input into this matter. the days I can run the pump for 10-12 hours the pool is sparkling.....anything less and i'm scrubbing, shocking, and skimming 4 days a week.

    http://www.yourpoolproducts.com/Hayw...sp-3010x15.htm
    18,000 Gallon in ground plaster pool. Hayward SP-3010X15 pump. Tons o' stains

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    Re: Want to replace pump motor - still have some questions

    There are lots of pump experts around here so I'll let them advise on that, though I'd think you could use a much smaller motor.

    You may have something else going on though if you need a your pump to run that long each day. Each pool is different of course, but most seem to be able to get away with pump run times half of what you are experiencing. Could be a low level algae problem??
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    Re: Want to replace pump motor - still have some questions

    the largest issue is contaminants entering the pool. There are 6 trees (after I removed 4) surrounding the yard that drop items into the pool almost constantly...........4-5 hours of the day without the water moving and its full of leaves or seeds or all kinds of organic material. This seems to be the issue with keeping the **** thing clear.
    18,000 Gallon in ground plaster pool. Hayward SP-3010X15 pump. Tons o' stains

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    Mod Squad jblizzle's Avatar
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    Re: Want to replace pump motor - still have some questions

    Is the problem that the floor is not vacuumed enough or the top is not skimmed enough?

    The cheapest solution would be to replace your existing motor with a 2-speed and then run on low speed most of the time. If you go with a smaller motor (1HP say), then you will also likely need to get a smaller impeller so that the smaller motor is not over-worked.

    That said, on low speed, your vacuum may not work very well and the skimmer may struggle as well.

    One possibility would be to try running for shorter periods but at multiple times during the day. Say run 2 hours at 3 different times of the day. This may help keep the surfaced skimmed and thus less will fall to the floor.

    You could certainly get by with a smaller pump, but not sure that would "solve" the debris problem ... it would allow you to spend a little less $ on electricity. But, I am not sure you could take the benefit of running on low speed.
    Jason, TFP Moderator
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    Smykowski's Avatar
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    Re: Want to replace pump motor - still have some questions

    A cheaper possibility would be to put a smaller impeller on the existing motor. Not sure if that's feasable for you, but that's the route I'm going.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
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    Re: Want to replace pump motor - still have some questions

    I understand how impellers work from the standpoint of the water pump on a boat....is this essentially the same thing?

    Not a ton of debris on the floor...the vacuum does its job there. Mostly the top of the water having junk floating around constantly.
    18,000 Gallon in ground plaster pool. Hayward SP-3010X15 pump. Tons o' stains

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    Mod Squad jblizzle's Avatar
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    Re: Want to replace pump motor - still have some questions

    You might try splitting up the run times to start and see if that helps.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: Want to replace pump motor - still have some questions

    I'll start there. Would I not see an incredible savings running a variable speed pump most of the day? A lot of people run their pumps nearly all day around here to keep them clear.
    18,000 Gallon in ground plaster pool. Hayward SP-3010X15 pump. Tons o' stains

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