Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 7 of 7

Thread: How to Drain a Fiberglass Pool without Damaging the Shell

  1. Back To Top    #1

    How to Drain a Fiberglass Pool without Damaging the Shell

    Hi! I am new here my name is Adrian... and I am desperate for answers and guidance. I have a fiberglass pool that needs to be painted with apoxy since the orginal gel lining is wearing off. I got a quote from a contractor who said it would costs $5600!! I was hoping to do this myself and have been researching on how to ensure you do not damage the shell. I think it may be doable since I live in the desert (so water table not an issue) and was thinking as long as I do not saturate the surrounding ground with the water I pump out and I it does not rain the walls will not cave in and the shell wont pop out. Has anyone else drained their fiberglass pool and/ or have advice for me?
    Approx 17,500 IG, Pebble, Hayward 1750 filter cartridge, Pentair Ultra Flow w 2hp pump, AutoPilot Digital SWG,
    A&A Magna sweep self clean,
    Fort Lauderdale, FL

  2. Back To Top    #2

    Re: How to Drain a Fiberglass Pool without Damaging the Shel

    I have the same problem and have been researching before I drain my pool. I have problems because the water tables are high and I have not found a way (yet) to provide hydrostatic relief. I read somewhere that you can pump the water out of your pool and connect the line into another plumbing line. There are a lot of posts about products...do you know anything about sani-tred products?

  3. Back To Top    #3

    Re: How to Drain a Fiberglass Pool without Damaging the Shel

    No, never heard of those products, I will google. Geez, that's gonna make tjings more complex in your situation high water tables from what I read can cause water to be beneath the pool which can make it float and pop up. Have you heard anything about placing braces on the walls of pool to support while the pool is empty? That seemed to not make sense to me since you need to paint the full surface of pool and woyld need to remove braces to paint underneath. Let me know if you learn more and I will do the same. Adrian
    Approx 17,500 IG, Pebble, Hayward 1750 filter cartridge, Pentair Ultra Flow w 2hp pump, AutoPilot Digital SWG,
    A&A Magna sweep self clean,
    Fort Lauderdale, FL

  4. Back To Top    #4

    Re: How to Drain a Fiberglass Pool without Damaging the Shel

    I haven't heard about the braces but probably because I have been trying to come up with a less expensive option than calling a company that specializes in pool repair and resurfacing. Good luck!

  5. Back To Top    #5
    Mod Squad YippeeSkippy's Avatar
    Join Date
    Jan 2012
    Location
    'burbs of Augusta, Georgia
    Posts
    6,479

    Re: How to Drain a Fiberglass Pool without Damaging the Shel

    Next to my pool skimmer basket is another access place- this is a large (10 inches across maybe?) PVC tube that goes down in to the ground next to my pool. It has stone at the bottom just like the fill around my pool. My understanding is that I can monitor ground level water there, and if necessary (eeegads) drop a sump pump down there to drain if ever I had water there. I've never once seen any- its dry as the desert from what I can tell when I pop the little cover off and look.
    Is there any chance you have one of these somewhere around your pool?
    My Amazon Smile for November12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
    Our pool build--> Our Pool Solved Our Sloping Yard Skippy's Cheap Pool Cooler -->Skippy's New Fountain

  6. Back To Top    #6

    Join Date
    Jul 2013
    Location
    Waxahachie, Tx.
    Posts
    424

    Re: How to Drain a Fiberglass Pool without Damaging the Shel

    a fiberglass pool has to have cross bracing installed inside the pool before draining. It's the weight and pressure of the exterior fill around the pool that can possibly colapse the shell. That is my understanding thru all the reading that i have done. someone please correct me if i am wrong. i am no expert, but have done a lot of research on fiberglass pools.
    12 x 26 Viking FG IG, Bermuda Model, 3 1/2' to 5', 7000 Gallons, Diamond Series Maya, Hayward 1 1/2 HP Maxflo VS, Hayward Stay Clear Plus Cart Filter C17502(S), Hayward Aqua Rite SWG w/T3 cell, Color Changing FIBERSTAR Lighting, Aqua Bot Supreme Robotic cleaner, Brushed Concrete with CCI Liberty Tan color, Taylor K-2006 test kit, Armor Foundation penetrating concrete sealer(lifetime warranty).

  7. Back To Top    #7
    Melt In The Sun's Avatar
    Join Date
    Oct 2009
    Location
    Tucson, AZ
    Posts
    3,899

    Re: How to Drain a Fiberglass Pool without Damaging the Shel

    In AZ you're not going to have a problem with the water table...I assume you're in Tucson or Phoenix? Regarding the cross bracing, I'd contact the manufacturer and see what they recommend.

    How old is the pool? Wearing off the gelcoat in a cast fiberglass pool is not something we hear often.
    11,200 gal, Pebble-Tec; Tristar 2-speed 1hp - Swimclear 325 ft2 cart - SWG - A & A in-floor cleaner - Heat pump. For the poolside cooking, a Yoder Wichita and a Big Steel Keg!
    TF Test Kits -- PoolMath -- Pool School
    Make each day your masterpiece. - John Wooden

Posting Permissions

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