Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 12 of 12

Thread: Dig up HALF my pool?

  1. Back To Top    #1

    Join Date
    Jun 2016
    Location
    Orange County, CA
    Posts
    91

    Dig up HALF my pool?

    I mentioned somewhere here before that I purchased a new home with a sports pool that was built somewhere in the 1980's. The pool originally had a deep end of around 8 feet, I was told. Maybe a decade or so after that, the owner decided on making the pool into a sports pool and filled in the deep end and replastered.

    To you pool experts out there. Would I be able to go in, drain the pool, and dig up that filled in part of the pool only? Then, assuming I carefully removed the debris from the fill, re-plaster and restore the pool to its original state, deep end and all? In theory, the outer shell of the pool might still exist right? I know they probably put in new rebar and such, but please, humor me and let me know if this is something in the realm of possibility. I don't need it to be DIY - I would be willing to hire a proper pool company. I am more interested in hearing about the feasibility of doing this. OR.... is that a lost cause? Is this something I should just start over from scratch?
    16,250 Gallons, IG Plaster; Pentair Clean & Clear CC100 Cartridge Filter with WhisperFlo Pump;
    Pool install 1980's; TF-100 Test Kit; Stage 2 California drought restrictions

  2. Back To Top    #2


    TFP Guide

    bmoreswim's Avatar
    Join Date
    Jul 2012
    Location
    Central MD
    Posts
    3,282

    Re: Dig up HALF my pool?

    Well you wouldn't start from scratch unless something went terribly wrong in the process of recreating the original depth profile. You are correct that they would have gone into the original shell with rebar and also likely chipped into it at the "joint" perimeter to give it something extra to grab onto there. I'm guessing that no PB would guarantee that he wouldn't crack the original shell. The hardest part conceptually to me is if you can tell where the filled in part begins and ends. Once you chip out plaster, it may be more clear, which would be helpful. Just my thoughts.
    18'x38' Rectangle (3'-8 1/2' deep w/ diving board) - 27K gal. w/ gray plaster
    Hayward equipment (cartridge filter, 2-speed pump, SWCG, automation) View Our Build
    Coverstar automatic pool cover | StoneMakers concrete retaining wall and decking
    Spring 2013 Build | Dolphin Active 20 robot cleaner | Support TFP!

  3. Back To Top    #3

    Join Date
    Jun 2016
    Location
    Orange County, CA
    Posts
    91

    Re: Dig up HALF my pool?

    bmoreswim... are you saying there is a small chance that I can do this? dig up JUST the filled in part and restore the pool to its original state with the deep end?
    16,250 Gallons, IG Plaster; Pentair Clean & Clear CC100 Cartridge Filter with WhisperFlo Pump;
    Pool install 1980's; TF-100 Test Kit; Stage 2 California drought restrictions

  4. Back To Top    #4


    TFP Guide

    bmoreswim's Avatar
    Join Date
    Jul 2012
    Location
    Central MD
    Posts
    3,282

    Re: Dig up HALF my pool?

    I've never personally used a jackhammer which is what will be needed to do the job. So I don't know to what extent the new concrete will be interested in separating from the original pour. Conceptually, if the plaster is chipped out in the whole basin, and you can identify the area to be "deepened", AND using a jackhammer on the too deep section will not harm the shell, then I think it might be possible - in conjunction with a concrete saw to score the depth and cut through rebar. I'd view my post as a conversation starter. I know how they likely filled it, but the actual jack-hammering physics are something other users can hopefully shed some light on.
    18'x38' Rectangle (3'-8 1/2' deep w/ diving board) - 27K gal. w/ gray plaster
    Hayward equipment (cartridge filter, 2-speed pump, SWCG, automation) View Our Build
    Coverstar automatic pool cover | StoneMakers concrete retaining wall and decking
    Spring 2013 Build | Dolphin Active 20 robot cleaner | Support TFP!

  5. Back To Top    #5
    Pool Tool's Avatar
    Join Date
    May 2014
    Location
    Western Chicago Area, IL
    Posts
    754

    Re: Dig up HALF my pool?

    In the deep end of the pool there is a few feet between the new sport pool bottom and the original bottom. This space was probably filled in with dirt or gravel and likely not solid concrete. I think one could jackhammer thru the existing sport pool bottom looking for the void space then remove that "new floor" back to where it ties into the original pool structure.

    This could be one option and give you an idea of expense vs. value added in returning it to a deep end. Good luck.
    16' x 32' (21100 gal), vinyl, 1.5 hp Hayward SuperPump,
    Tagelus TA60/60D Sand Filter, Raypak 399K Digital Heater, TF-100

  6. Back To Top    #6

    Join Date
    Jun 2016
    Location
    Orange County, CA
    Posts
    91

    Re: Dig up HALF my pool?

    Thanks guys for your input. Intuitively, it seems to me that a "gentle" jackhammering through the plaster seems like it could work. I'm glad to hear that this is in the realm of possibility. I'm calling some local PB's for their input and possible estimates. I'm only doing this if there is a VERY GOOD possibility it can be done without doing EVERYTHING over. Expense vs. value added is definitely the key here.
    16,250 Gallons, IG Plaster; Pentair Clean & Clear CC100 Cartridge Filter with WhisperFlo Pump;
    Pool install 1980's; TF-100 Test Kit; Stage 2 California drought restrictions

  7. Back To Top    #7

    TFP Guide
    triptyx's Avatar
    Join Date
    Apr 2016
    Location
    Tucson, AZ
    Posts
    1,194

    Re: Dig up HALF my pool?

    Out of curiosity, are you desperate for a diving pool? What makes you want to restore the original depth?
    8,500gal plaster in-ground with attached spa, two floor drains, one skimmer. Chlorine, City Water.
    Pentair WhisperFlo 1hp Pump, MagnaTek Midcentury EPlus motor, Pentair CleanNClear 200SF Cartridge filter, Purex Triton MiniMax 250 Gas Heater, Pentair SunLite, AutoFill.
    Kreepy Krauly Cruiser, TF-100 with SpeedStir. :D

  8. Back To Top    #8
    Mod Squad kimkats's Avatar
    Join Date
    Jul 2012
    Location
    Tallahassee, FL
    Posts
    26,654

    Re: Dig up HALF my pool?

    Husband laughed at the "gentle" jackhammer LOL BUT he did say if you score the new stuff with a saw you MAY be able to get the new out. The ticket will be the person holding the jackhammer skills. If it is like our one friend he would be to China before you said BOO but with another friend it would be a sliver at a time.

    When you call make sure they know you will be doing this after all of the current builds are done so they know they will have work when the busy season is over.

    Kim
    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

  9. Back To Top    #9

    Join Date
    Jun 2016
    Location
    Orange County, CA
    Posts
    91

    Re: Dig up HALF my pool?

    Quote Originally Posted by triptyx View Post
    Out of curiosity, are you desperate for a diving pool? What makes you want to restore the original depth?
    trityx... I am not desperate, but I grew up with pools having a deep end and I feel like my pool is large enough that a deep end would make it more "fun" if that makes sense. For example, when we used to swim at our old condo pool, it had a 10 foot section and my daughters liked to practice diving. Here at home, they cannot safely do that.

    If the cost is minimal, then I am inclined to make it deep again.

    - - - Updated - - -

    Quote Originally Posted by kimkats View Post
    Husband laughed at the "gentle" jackhammer LOL BUT he did say if you score the new stuff with a saw you MAY be able to get the new out. The ticket will be the person holding the jackhammer skills. If it is like our one friend he would be to China before you said BOO but with another friend it would be a sliver at a time.

    When you call make sure they know you will be doing this after all of the current builds are done so they know they will have work when the busy season is over.

    Kim
    Thanks Kim, I never even thought about using a saw to make "incisions" in the pool floor. It makes perfect sense. I have a lot of calls to make to PB's, and YES, this would for sure be done after summer is over, although it stays warm almost the entire year here in Southern Cali.
    16,250 Gallons, IG Plaster; Pentair Clean & Clear CC100 Cartridge Filter with WhisperFlo Pump;
    Pool install 1980's; TF-100 Test Kit; Stage 2 California drought restrictions

  10. Back To Top    #10

    TFP Guide
    triptyx's Avatar
    Join Date
    Apr 2016
    Location
    Tucson, AZ
    Posts
    1,194

    Re: Dig up HALF my pool?

    Sorry, I didn't mean "desperate" to sound like a bad thing. To me, it seems like a lot of cost that could be sunk into remodeling the pool area is all.
    8,500gal plaster in-ground with attached spa, two floor drains, one skimmer. Chlorine, City Water.
    Pentair WhisperFlo 1hp Pump, MagnaTek Midcentury EPlus motor, Pentair CleanNClear 200SF Cartridge filter, Purex Triton MiniMax 250 Gas Heater, Pentair SunLite, AutoFill.
    Kreepy Krauly Cruiser, TF-100 with SpeedStir. :D

  11. Back To Top    #11
    Mod Squad YippeeSkippy's Avatar
    Join Date
    Jan 2012
    Location
    'burbs of Augusta, Georgia
    Posts
    6,459

    Re: Dig up HALF my pool?

    I'm with you Rocketfish- a deeper pool is WAY more fun and provides far more options than a "sports pool". I just don't get the attraction to them, personally.

    Make sure if you do this you share the entire process with us, 'k?

    Yippee
    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

  12. Back To Top    #12

    Join Date
    Jun 2016
    Location
    Orange County, CA
    Posts
    91

    Re: Dig up HALF my pool?

    Quote Originally Posted by triptyx View Post
    Sorry, I didn't mean "desperate" to sound like a bad thing. To me, it seems like a lot of cost that could be sunk into remodeling the pool area is all.
    triptyx... i didn't take it as a bad thing

    - - - Updated - - -

    I will share the entire experience with you all for sure! I don't know if I'll actually go through with it, though. Seems like the cost of it is pretty close to starting over based on a conversation I had with a local PB that I just called. We will see this fall - I will have somebody give me an actual quote.

    To be continued......
    16,250 Gallons, IG Plaster; Pentair Clean & Clear CC100 Cartridge Filter with WhisperFlo Pump;
    Pool install 1980's; TF-100 Test Kit; Stage 2 California drought restrictions

Posting Permissions

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