Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 5 of 5

Thread: Draining water to adjust CH?

  1. Back To Top    #1

    Join Date
    Jul 2010
    Location
    Richardson, TX (Dallas suburb)
    Posts
    49

    Draining water to adjust CH?

    Happy Holidays all…I've been absent a while…staying busy…but that just means that I have been able to easily "search and find" answers to my recent questions.

    Today I have a quick question...I just started taking care of a pool for a neighbor and, of course, the supposed professionals had it all a mess. I need to drain about 60% of the water to bring the CH in check (some scaling has been occurring, also water is remaining somewhat unclear). What I am wondering is while I am pumping water from the pool, can I go ahead and have water refilling it simultaneously? Or do I need to drain, then refill to insure there is the right amount of fresh water being added?

    Again, thanks for all your help and education. It always amazes me that after I have been away from the site for any period of time…even just a month...how much new and/or updated info I encounter upon my return! That's one of the reasons I have to take a break from the site because the info quickly becomes almost addictive…and then of course, upon finding the answer to one question, more often than not, it leads to further questions! I Love that part!
    Brian, Richardson TX. 25K Plaster Pool, 1.5 HP Pump, Polaris 280 w/ 3/4 HP Booster Pump, 325 sq ft Cart Filter. This is my 3rd pool to convert to BBB method.

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,085

    Re: Draining water to adjust CH?

    What I am wondering is while I am pumping water from the pool, can I go ahead and have water refilling it simultaneously?
    You can pretty much do that. The pool water should be colder than your refill water so siphon or drain from the bottom of the deep end of the pool and put your refill hose at or near the surface in the shallow end. You'll use a bit more water but it's an easy way to keep your pool level constant while replacing water.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

    Join Date
    Jul 2010
    Location
    Richardson, TX (Dallas suburb)
    Posts
    49

    Re: Draining water to adjust CH?

    Thanks...
    Brian, Richardson TX. 25K Plaster Pool, 1.5 HP Pump, Polaris 280 w/ 3/4 HP Booster Pump, 325 sq ft Cart Filter. This is my 3rd pool to convert to BBB method.

  4. Back To Top    #4
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: Draining water to adjust CH?

    Just to follow up on that if your fill water is colder than the pool water then fill from the bottom and remove from the top
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

  5. Back To Top    #5
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Draining water to adjust CH?

    You can simplify it if they have a spa. When I exchange water to lower CH, I empty the spa into the pool and start refilling the spa while the pool is watering the lawns.

    Unclear water is probably not caused by the Calcium. I've hit 1100 CH before and you could still toss a coin into the deep end and call heads or tails.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •