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Thread: Going down to 30 tonight. Should I run the pump all night

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    Going down to 30 tonight. Should I run the pump all night

    Hello all, We live in Houston and I intend to not "close" the pool for the winter but just keep it maintained as per normal. Tonight we are supposed to get a slight freeze; maybe around 30 degrees for a couple hours late tonight . Should I keep the pump running on low all night ?

    Thanks and sorry for the late question!
    21000 gallons (including spa), pebble sheen; Intelliflo Vs pump plus 2hp feature pump. De filter 60sq ft; Mastertemp 400k heater; Easytouch 8 and last but not least it is a chlorine pool

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    Re: Going down to 30 tonight. Should I run the pump all night

    Quick update - the search function just gave me a bunch of info on this. So I'm good for now; thanks!
    21000 gallons (including spa), pebble sheen; Intelliflo Vs pump plus 2hp feature pump. De filter 60sq ft; Mastertemp 400k heater; Easytouch 8 and last but not least it is a chlorine pool

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    smforte's Avatar
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    Re: Going down to 30 tonight. Should I run the pump all night

    AL here, going to be 27 here. I'm running mine. Rather be safe than sorry right?
    Montgomery, AL
    27000 16 x 36 IG, Vinyl, Grecian, Hayward Sand filter, 1 HP Pentair whisperflo motor, Aqua Genie filter not by choice, no extra jets, Dolphin s300i robotic cleaner,Taylor K 2006 test kit, speed-stir which I couldn't live without!

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    Re: Going down to 30 tonight. Should I run the pump all night

    Exactly. During cold times like these, the intelliflo kicks on at 1000 RPM. My normal schedule is 6 hours. Even if the pump ran at 1000 RPM for the other 18 hours a day it would only cost $5.00 extra in electricity per month.
    14K Freeform Gunite w/60% Blue Quartz plaster, Quad DE filter, Intelliflo VS Pump + Booster for Cleaner, Aquacal Heat Pump

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    Re: Going down to 30 tonight. Should I run the pump all night

    I have an intelliflo variable speed pump. Will it kick in automatically below a certain temp?
    21000 gallons (including spa), pebble sheen; Intelliflo Vs pump plus 2hp feature pump. De filter 60sq ft; Mastertemp 400k heater; Easytouch 8 and last but not least it is a chlorine pool

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    Re: Going down to 30 tonight. Should I run the pump all night

    The default is anti-freeze enabled, 40 degrees and 1000 RPM. I increased mine to 45 degrees because a Pentair rep told me that the internal temperature sensor is usually a few degrees higher than the outside temperature, which makes sense. Even if that is wrong, for the extra amount it will cost me in electricity, I'd rather be safe. Can't hurt to just make sure it's on and set the way you want it. Just press menu, and then use the arrow keys to navigate to anti-freeze.
    14K Freeform Gunite w/60% Blue Quartz plaster, Quad DE filter, Intelliflo VS Pump + Booster for Cleaner, Aquacal Heat Pump

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    Patrick_B's Avatar
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    Re: Going down to 30 tonight. Should I run the pump all night

    It will kick on at 32, so no worries. It will have to be a good deal colder than that for many hours before there was concern of freezing/bursting pipes.
    TFP Moderator
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    Re: Going down to 30 tonight. Should I run the pump all night

    Hey, weather says below 32 degrees pretty much all night; from 11pm until 8am with a low of 25 that lingers for several hours. Sometimes it's hard to believe I live in the "South". I'm just waiting for the mid-winter prediction of 3 80ish days in a row so I can crank up the heater again.
    14K Freeform Gunite w/60% Blue Quartz plaster, Quad DE filter, Intelliflo VS Pump + Booster for Cleaner, Aquacal Heat Pump

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    Re: Going down to 30 tonight. Should I run the pump all night

    That's exactly why I bought an intermatic digital timer with a freeze sensor. It will supply power to my pump any time it gets to 32 then turn it off again when it gets above 32. I just schedule a 24 hr runtime on my intelliflo at 450 rpm which will start when my timer's sensor supplys power. The intelliflo's sensor is only designed to protect the pump, not the plumbing and other equipment. I figure 450 rpms will be sufficient to keep water flowing to keep it from freezing.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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    Re: Going down to 30 tonight. Should I run the pump all night

    Unless your intermatic timer is setup to turn on other equipment (my dual timer only kicks on the left side, not the right side which is the booster pump), it simply turns on the pump when it gets too cold, and the pump running is what protects the other stuff. That's precisely what the Intelliflo antifreeze sensor does.

    My PB configured my build with an intermatic timer and I questioned it at the time saying why are you bothering with that if the pump has built in scheduling and freeze protection. He said that's just how they do all pools.. and now I believe it's because he just wasn't educated enough about how the Intelliflo works. I regret not having had him remove it from the build, because while I was having a problem with my pump a Pentair rep came out here and re-wired my intermatic to be on all the time, rendering the intermatic useless anyway. He said I should just use the Intelliflo for scheduling and antifreeze, which is what I had suspected I should be doing in the first place. Plus I imagine there is an internal battery in the Intelliflo to keep track of time and such for scheduling. If you completely remove power from the pump, I imagine the battery will eventually go dead. I'm sure it's easy enough to replace, but it makes more sense to me that it should be used as a backup, not as a primary method of retaining settings in the pump.

    In any event, I have my pump scheduled to run for 6 hours at 2000 RPM and then 1000 RPM for the remaining 18 hours of the day, so it's running all the time right now. It uses such a little amount of electricity when running at 1000 RPM that it will only cost me an extra $3.00 or so on my electric bill, plus it keeps the pool nice and clean anyway.
    14K Freeform Gunite w/60% Blue Quartz plaster, Quad DE filter, Intelliflo VS Pump + Booster for Cleaner, Aquacal Heat Pump

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    Re: Going down to 30 tonight. Should I run the pump all night

    The digital timer runs the boost pump and the swcg. I've had the timer for over a year. And while I schedule all the pump runs on the pump itself, I find it convenient to use the timer to sync the boost pump the swg and the intelliflo. Besides the pumps freeze protection is for only the pump itself not any of the other equipment. The Pentair installer said that was the correct way to ensure the effectiveness of the freeze protection for everything but the pump. This was also confirmed by Pentair cs. Since I'm running my cleaner and skimmers for 3 hrs and 4 hrs respectively, that should keep the pump schedules and clock in memory without problem. No need to run any longer than necessary even with the energy efficiency of the vs pump.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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    mas985's Avatar
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    Re: Going down to 30 tonight. Should I run the pump all night

    Keep in mind that it takes many hours for pipes to freeze and at 27F with a 15 mph wind, it takes over 24 hours to freeze a 1.5" pipe. So you really don't need to set the freeze protection temperature any higher than the minimum. It is unlikely to freeze even if you didn't run the pump at all. If it was my pool, I wouldn't even run the pumps, which I don't even when it gets down to 22F.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Going down to 30 tonight. Should I run the pump all night

    What I'll keep in mind is that I've had faucets freeze at 30 and equipment replacement is big bucks I don't have to spend. I'd rather be safe than sorry. The default for my freeze sensor is 32 so, I think I'll leave it at that. The temp Tuesday morning is supposed to be 25 here.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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    Re: Going down to 30 tonight. Should I run the pump all night

    +1 what mas985 said. I don't really think about it until 25 degrees overnight.
    Dave S.
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    mas985's Avatar
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    Re: Going down to 30 tonight. Should I run the pump all night

    A 3/4" copper or steel pipe will freeze 5x faster than a 2" PVC pipe. Also, faucets are much more vulnerable because one end of the pipe is closed off and there is no pressure relief. This post has a lot more details on the physics of freezing: http://www.troublefreepool.com/threa...eze-Protection

    It is good to be conservative but sometimes it can be overdone.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Going down to 30 tonight. Should I run the pump all night

    I've got recirculating pumps on both water heaters. Aside from not having to wait for hot water, it has the added benefit of keeping the pipes warm.
    14K Freeform Gunite w/60% Blue Quartz plaster, Quad DE filter, Intelliflo VS Pump + Booster for Cleaner, Aquacal Heat Pump

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    Re: Going down to 30 tonight. Should I run the pump all night

    That have my pump running at over 3000 rpm during freeze protection. Seems awfully high after reading the feedback from the forum. My normal rpm is around 2400. Am I ok to turn both of these down?


    DFW, TX
    34K gal WetEdge Chlorine Pool w/OK Flagstone Coping
    Jandy Flow Pro Variable, DE 60 Filter, Polaris 280 Cleaner

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    mas985's Avatar
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    Re: Going down to 30 tonight. Should I run the pump all night

    Yes, you only need a small amount of water flow to keep the pipes from freezing. Event the lowest speed should be sufficient. Also, you need to be careful that every part of the plumbing gets flowing water. But you really should take other steps to prevent freezing as well because a power outage can make the plumbing vulnerable. Covering the equipment with a tarp is a simple and very cost effective method of reducing the chance of plumbing freezing should the pump fail. Adding a light bulb under the tarp could even alleviate the need the pump depending on the plumbing setup. Some more complicated setups may not do this automatically.

    BTW, welcome to the forum.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Going down to 30 tonight. Should I run the pump all night

    I run my pump at 1500 rpm for normal operations , ie cleaner and skimming/swg and now 750 for freeze protection. I've been told that the boost pump will run the cleaner sufficiently regardless of main pump rpm as long as there's flow. I haven't checked it at a lower rpm than 1500. Maybe next spring. Last winter was the first for my timer/freeze sensor. The only time I'd be worried about power outage is if we had freezing rain and the resulting tree limbs falling on power lines. We haven't had that in the three winters we've been in this house. Last year we did have some below 20 temps. The freeze sensor worked perfectly all winter!
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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