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Thread: Opening My Pool Today - water testing

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    Opening My Pool Today - water testing

    I am opening up the pool today, some time this afternoon.

    I have a TF100 test kit that I am dying to use.

    How long after opening the pool and running the pump should I wait until I test the water to get accurate readings?
    76549 Liters -- Cartridge Filter -- In Ground -- Vinyl -- TF-100 Test Kit -- AquaVac Robotic Cleaner -- UV Sanitation -- Winter Safety Cover -- Installed 2010 -- Southwestern Ontario, Canada

    Latest Test Results June 25:
    FC - 6, CC - 0, CYA - 40, CH - 110, TA - 90, pH - 7.5

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    JasonLion's Avatar
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    Re: Opening My Pool Today - water testing

    Run the pump for an hour or two before testing the water.
    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: Opening My Pool Today - water testing

    I have a new question now.

    I had some help opening the pool today, the pool builder came by and showed me how to get it going. They left and I was left with a bunch of **** on the bottom since I use a safety cover, the water however is clear.

    I hook up the vacuum to the skimmer and started to clean up. There was very little suction and the vacuum was only cleaning a 3" strip essentially right where the hose connects to the vacuum head, not the entire width of the vacuum head.

    I went and closed off all the valves except for the skimmer and I got the same thing.

    I called the pool builder and he was puzzled. He asked me to pull the hose off and see if there was any suction coming from the skimmer. I did that and the section was VERY strong. He is going to come check it out tomorrow.

    I then took the vacuum head off the vacuum and I felt like the suction coming from the hose was very good. But as soon as I attach the vacuum head the section coming from the vacuum head is terrible.

    Is it likely the vacuum that came in the start kit is **** and the connection between the hose and vacuum head isn't tight?
    76549 Liters -- Cartridge Filter -- In Ground -- Vinyl -- TF-100 Test Kit -- AquaVac Robotic Cleaner -- UV Sanitation -- Winter Safety Cover -- Installed 2010 -- Southwestern Ontario, Canada

    Latest Test Results June 25:
    FC - 6, CC - 0, CYA - 40, CH - 110, TA - 90, pH - 7.5

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    Mod Squad Bama Rambler's Avatar
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    Re: Opening My Pool Today - water testing

    If it's a manual vacuum you should be able to see through the hole in the vac head.
    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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    Re: Opening My Pool Today - water testing

    Quote Originally Posted by Bama Rambler
    If it's a manual vacuum you should be able to see through the hole in the vac head.
    It's a manual vacuum and there are no obstructions. It is very puzzling. The vacuum head is about 12" wide, but I am only able to clean a 3" wide strip. With an 18x36 pool it is going to take hours. It is only cleaning right where the hose connects to the head.

    Is it possible that the hose and vacuum head don't make a sufficient connection?

    Is there a safe way to test if the hose or this connection is bad?
    76549 Liters -- Cartridge Filter -- In Ground -- Vinyl -- TF-100 Test Kit -- AquaVac Robotic Cleaner -- UV Sanitation -- Winter Safety Cover -- Installed 2010 -- Southwestern Ontario, Canada

    Latest Test Results June 25:
    FC - 6, CC - 0, CYA - 40, CH - 110, TA - 90, pH - 7.5

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    Mod Squad Bama Rambler's Avatar
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    Re: Opening My Pool Today - water testing

    If the hose is clear and there's no obvious leaks then I doubt it's anything to do with the hose or head. What is your filter pressure? Both while the vacuum is hooked up and not?
    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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    Re: Opening My Pool Today - water testing

    I just came inside after 1.5 hours of vacuuming. It started to rain so I called it quits and came back inside.

    Yesterday when we opened the pool and PSI was 2 and I just checked it before coming in and it was around 3. I didn't check while vacuuming, so I can't comment on that portion.

    I also added 3000g of CYA today, so I don't want to have to open the filter and clean it right now, but I'll do what I have to do.

    I might not get out to the pool tomorrow to try vacuuming some more, I have to work.

    I did notice that if I put a lot of downward pressure on the vacuum, it cleaned better. I don't think that is the answer to my issue however as I don't think I should have to do this.

    I called the Pool Builder so hopefully he comes before the weekend to check things out.

    So far I have put about 2.5 hours of vacuuming into the pool and another 1.5 hours to go, but that won't even take care of the nooks and crannies because the vac won't hit these parts.
    76549 Liters -- Cartridge Filter -- In Ground -- Vinyl -- TF-100 Test Kit -- AquaVac Robotic Cleaner -- UV Sanitation -- Winter Safety Cover -- Installed 2010 -- Southwestern Ontario, Canada

    Latest Test Results June 25:
    FC - 6, CC - 0, CYA - 40, CH - 110, TA - 90, pH - 7.5

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    Mod Squad Bama Rambler's Avatar
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    Re: Opening My Pool Today - water testing

    2 psi is really low. Do you have a 2-speed pump?

    If so make sure you're not running it on low when try to vacuum.
    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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    Re: Opening My Pool Today - water testing

    1 speed pump.
    76549 Liters -- Cartridge Filter -- In Ground -- Vinyl -- TF-100 Test Kit -- AquaVac Robotic Cleaner -- UV Sanitation -- Winter Safety Cover -- Installed 2010 -- Southwestern Ontario, Canada

    Latest Test Results June 25:
    FC - 6, CC - 0, CYA - 40, CH - 110, TA - 90, pH - 7.5

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    Mod Squad Bama Rambler's Avatar
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    Re: Opening My Pool Today - water testing

    Is there any air in the pump strainer basket?
    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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    Re: Opening My Pool Today - water testing

    Off and on I have seen some air bubbles in it. But not many. Should I double check next time I vacuum? Do you think air is getting in somewhere?
    76549 Liters -- Cartridge Filter -- In Ground -- Vinyl -- TF-100 Test Kit -- AquaVac Robotic Cleaner -- UV Sanitation -- Winter Safety Cover -- Installed 2010 -- Southwestern Ontario, Canada

    Latest Test Results June 25:
    FC - 6, CC - 0, CYA - 40, CH - 110, TA - 90, pH - 7.5

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    Mod Squad Bama Rambler's Avatar
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    Re: Opening My Pool Today - water testing

    hat would explain the low filter pressure and the poor vacuuming perfomance. Check next time your vacuuming.
    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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    Re: Opening My Pool Today - water testing

    What exactly should I look for? Does the amount of air bubbles matter, or are any air bubbles bad ? I should take a pic. If I do have air what do I need to do to take care of the problem ?
    76549 Liters -- Cartridge Filter -- In Ground -- Vinyl -- TF-100 Test Kit -- AquaVac Robotic Cleaner -- UV Sanitation -- Winter Safety Cover -- Installed 2010 -- Southwestern Ontario, Canada

    Latest Test Results June 25:
    FC - 6, CC - 0, CYA - 40, CH - 110, TA - 90, pH - 7.5

  14. Back To Top    #14

    Re: Opening My Pool Today - water testing

    Just went out. Filter is at 6psi and no air in the pump basket
    76549 Liters -- Cartridge Filter -- In Ground -- Vinyl -- TF-100 Test Kit -- AquaVac Robotic Cleaner -- UV Sanitation -- Winter Safety Cover -- Installed 2010 -- Southwestern Ontario, Canada

    Latest Test Results June 25:
    FC - 6, CC - 0, CYA - 40, CH - 110, TA - 90, pH - 7.5

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    Re: Opening My Pool Today - water testing

    If there is no air, then it sounds like you have a restriction on the suction side of the system. The flow back in to the pool should be very strong.....it's probably not.

    Could be a piece of construction debris or it could be a valve not opened fully (not likely) but I would start to inspect the entire suction side.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Opening My Pool Today - water testing

    The returns don't have as much pressure as one would think they should. If there was some sort of obstruction in one of the lines what would need to be done to clear the line? They are under thousands of dollars of concrete.
    76549 Liters -- Cartridge Filter -- In Ground -- Vinyl -- TF-100 Test Kit -- AquaVac Robotic Cleaner -- UV Sanitation -- Winter Safety Cover -- Installed 2010 -- Southwestern Ontario, Canada

    Latest Test Results June 25:
    FC - 6, CC - 0, CYA - 40, CH - 110, TA - 90, pH - 7.5

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    Re: Opening My Pool Today - water testing

    what would need to be done to clear the line
    Well, eliminate everything else first then it's your PB's job to unblock any obstruction.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Opening My Pool Today - water testing

    I will make sure to bring up the possibility that one of the suction lines may be blocked. Just so i don't look like I self diagnosed this problem with my limited knowledge ...... What are the things that lead you to think that was the problem? I am only asking so I can bring it to his attention
    76549 Liters -- Cartridge Filter -- In Ground -- Vinyl -- TF-100 Test Kit -- AquaVac Robotic Cleaner -- UV Sanitation -- Winter Safety Cover -- Installed 2010 -- Southwestern Ontario, Canada

    Latest Test Results June 25:
    FC - 6, CC - 0, CYA - 40, CH - 110, TA - 90, pH - 7.5

  19. Back To Top    #19
    Mod Squad Bama Rambler's Avatar
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    Re: Opening My Pool Today - water testing

    The very low pressure of the filter is the biggest indicator. With a single speed pump, I don't ever recall a report of a pressure that low. It should be in the 10 psi or above range. And throw in the poor vacuuming issue.
    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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    Re: Opening My Pool Today - water testing

    Sure. Low pressure on the gauge and low flow back to the pool. If the system was restricted/blocked AFTER the pump you would still have low flow at the returns but HIGH pressure.

    Low pressure on the gauge is almost always a sign of air in the lines (you don't have that) or something restricting the water from adequately getting to the pump.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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