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Thread: "Low Flow on new Intex SWG install

  1. #1

    "Low Flow on new Intex SWG install

    Hi everyone.

    Just filled my AGP and installed a new Intex SWG yesterday with the help of a friend.

    We turned on the SWG , set it for 5 hours timer and of course the low salt came on, then I realized we weren't supposed to have the salt generator running yet, so turned it off for 24 hrs.

    Added 3 -40 LB bags of salt and 4 Cups of bleach. ( I know that wasn't much).

    When I went out this am it was on "sleep Mode". Sounded like the pump was still running. So I put it back to FP=Filter Pump mode. Checked my readings and this is what they were:

    FC= 0
    PH= 7.5
    TA= 260
    TH OR CH?/ 270
    CYA= 0
    SALT= I DUNNO

    Pool calculator recommended:
    39 oz bleach= check done
    7 1/2 oz borax= not done
    42 oz by volume CYA= check done. Note I put it in a LARGE sock and hung it on the return to pool. That's when I noticed the flow in, didn't feel as strong as yesterday.

    Then the alarm started sounding and red light say's 'Low Flow".
    Shut it off, checked filter, a little dirty but not bad, so I put it back.

    I took the sock of CYA out and kinda sorta dissolved it a 5 gallon bucket, it would take 3 weeks and I thought the sock would rot off before it dissolved.

    I don't know what I'm doing wrong with this new setup but the alarm keeps going off after about 5 mins of running either in FP only or with the salt generator on.
    't
    I've had it turned off completely for 2 to 3 hours and it needs to circulate.

    Hope someone can help me again. TIA

    Should I have posted this in the SWG section? I didn't see it til after I posted this.
    AGP, POPUP, 3800GAL. SWG 2000 GPH pump. Over the wall skimmer. SE TX. NEWBIE

  2. #2
    Administrator JasonLion's Avatar
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    Re: "Low Flow on new Intex SWG install

    What kind/model of pump and filter do you have?

    Low flow is almost always a dirty filter, but it can come from an obstruction in one of the hoses or the pump not being primed properly.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    TFP Admin. Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. #3

    Re: "Low Flow on new Intex SWG install

    Gosh! I love this site, that was so quick!

    It is the Intex Krystal clear SW sys. Model CS8111. ( I know, the one everyone say's to avoid because the copper, hoping to disconnect it).
    AGP, POPUP, 3800GAL. SWG 2000 GPH pump. Over the wall skimmer. SE TX. NEWBIE

  4. #4
    Senior Member dmanb2b's Avatar
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    Re: "Low Flow on new Intex SWG install

    When you turn the pump on, can you feel a healthy stream of water coming out of the return? This sounds like a combo intex pump/filter/swg.
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

    Pool School, TFTestKits, Pool Calculator

  5. #5
    Senior Member dmanb2b's Avatar
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    Re: "Low Flow on new Intex SWG install

    Or any chance the SWG is plumbed in backwards? There is a flow switch inside the SWG and unless it is being pushed up by water flow, you will continue to get the low flow error.
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

    Pool School, TFTestKits, Pool Calculator

  6. #6

    Re: "Low Flow on new Intex SWG install

    Quote Originally Posted by dmanb2b
    When you turn the pump on, can you feel a healthy stream of water coming out of the return? It felt alot stronger yesterday, than it does today.

    This sounds like a combo intex pump/filter/swg.
    I believe that's correct?

    I opened the valve from the suction side and let water poor on the ground to see if anything I was stuck at that end.
    AGP, POPUP, 3800GAL. SWG 2000 GPH pump. Over the wall skimmer. SE TX. NEWBIE

  7. #7

    Re: "Low Flow on new Intex SWG install

    Quote Originally Posted by dmanb2b
    Or any chance the SWG is plumbed in backwards? There is a flow switch inside the SWG and unless it is being pushed up by water flow, you will continue to get the low flow error.
    There is something white thing flapping around iside the clear tube chamber, towards the return line, when the SWG is turned on, not when it's on. Is that what you are talking about? Sorry, I'm not very proficient in the terminology. Lol.

    My Hubby told me to unplug it and see if it would reset, it hasn't gone off since, but there is water dripping from the ring on the filter unit. I don't think any vasoline was put on that ring. Could that be the problem?

    Thanks for the help so far.
    AGP, POPUP, 3800GAL. SWG 2000 GPH pump. Over the wall skimmer. SE TX. NEWBIE

  8. #8

    Re: "Low Flow on new Intex SWG install

    That should have read, not when it's turned off, of the SWG.
    AGP, POPUP, 3800GAL. SWG 2000 GPH pump. Over the wall skimmer. SE TX. NEWBIE

  9. #9
    Senior Member phalcon51's Avatar
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    Re: "Low Flow on new Intex SWG install

    Quote Originally Posted by bunedockmama
    I don't think any vasoline was put on that ring. Could that be the problem?
    Just a quick aside as I can't help with the flow problem; don't use Vaseline on the o-rings. Petroleum based lubricants are likely to do damage to the material. Instead, use a silicone-based lube. You should be able to find this at your local pool store.

    Gary
    26,200 gal. 35' x 16' Plaster IGP (50 yrs. old), Hayward 48 sq. ft. DE filter, Hayward EcoStar VS pump, Intellichlor IC-40 SWCG, The Pool Cleaner 4X suction, Pool Skim and Pool Devil skimmers. Re-plastered Sept. 2010.

  10. #10

    Re: "Low Flow on new Intex SWG install

    Quote Originally Posted by phalcon51
    Quote Originally Posted by bunedockmama
    I don't think any vasoline was put on that ring. Could that be the problem?
    Just a quick aside as I can't help with the flow problem; don't use Vaseline on the o-rings. Petroleum based lubricants are likely to do damage to the material. Instead, use a silicone-based lube. You should be able to find this at your local pool store.

    Gary

    Opps, too late gary, I put some on last night. I'll use the silicone lub. next time. Thank you.
    AGP, POPUP, 3800GAL. SWG 2000 GPH pump. Over the wall skimmer. SE TX. NEWBIE

  11. #11
    Junior Member
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    Re: "Low Flow on new Intex SWG install

    I've been using the CS8111 for 2 years. I've only had 4 things cause low flow indicator light. The most common is a dirty filter cartridge. This can be fixed by changing or cleaning the filter. Next would be a blockage, usually small leaves in the intake line. Unscrew the blue connector flange where the skimmer hose connects to the inside of the pool. Small leaves can get past the skimmer basket and get built up here. Next, (I would guess this is your problem) air in the pump and filter system. Turn off the pump. Then turn off the pump return and intake valves. Open the plug at the top of the pump and the plug at the top of the filter canister. Next reopen the intake and return valves. Wait until you have good water flow from the pump and filter plugs. Close the pump plug first, then the canister plug. Turn the pump back on. The pump should be pretty quiet with only the hum of the electric motor. If you hear a ssssssssshhhhhhhhhhhhhssssssssing noise you've still got air in the system. Also loose plugs and hose connections can let air in the system. Make sure everything is tight. The only other thing I've seen that caused low flow involved the pool vac. Good luck.

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