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Thread: New pool - tolerances from design

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    New pool - tolerances from design

    Ive been trolling a while, and have a question on tolerances from design to actual build on a shotcrete pool.

    we are building a 36x24 shotcrete diving pool. At the 48 mark the pool depth varies from 49.5 to 52. Is this acceptable? Im currently draining the pool to check the 8 mark.

    thanks in advance,

    Mike
    5583BB67-CB5E-45C3-A119-0A2CE2BC4143.jpgBAF31902-8FAD-46B3-97F9-B0757450B420.jpg

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    Re: New pool - tolerances from design

    IMO, yes. This is a hand made products with big clunky tools. Mine was off a little bit on the depth but I am talking an inch or two here and there. Also the floor isnt going to be perfectly flat.
    Rectangular 24'x40' Salt Water, 4' to 6'. Pentair EasyTouch 8, Screen Logic 2, w/wireless kit. Pentair IntelliFlo VSF Pump, Pentair CCP520 Cartridge Filter, Pentair IC60 Cell, Wet Edge Northshore Tahoe finish. ~28,000 gallons. TF-100 Test Kit. Completed: Dec 2017 Build Thread

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    Mod Squad Jimrahbe's Avatar
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    Re: New pool - tolerances from design

    mg,

    Welcome to TFP... a great place for those with OCD to find the answers to all there new pool questions...

    As a general rule, gunite or shotcrete shells are never perfectly flat. Some of this gets taken out when the plaster is applied, but a couple of inches of difference would seem perfectly normal to me.

    I believe that the most important thing to look for would be a level bond beam...

    Let's see what some of our other members have to say...

    Thanks for posting,

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Caldera Spa.

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    bmoreswim's Avatar
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    Re: New pool - tolerances from design

    At the roughly the 5' depth point of our pool (halfway lengthwise) one side is 6" deeper than the other. That's more than I would expect, though it was/is of zero concern to me. It is also 2" longer and 1/2" skinnier than the plan. Both well within MY expected tolerances. In hindsight, I could see the stone base sloped from one side the other in the middle of the pool before it was shot. The deep and and shallow end are level side to side.

    I feel your variances are within a normal/acceptable range. There was a build a few years ago where the L and W dimensions of the pool were well off from the drawing, but much more than what you are seeing.
    18'x38' Rectangle (3'-8 1/2' deep w/ diving board) - 27K gal. w/ gray plaster
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    riley00dog's Avatar
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    Re: New pool - tolerances from design

    I am not measuring my shell for these reasons. I measured after the dig and rebar and allowed for the concrete and plaster ect. It was pretty spot on. I have a feeling we may have lost a couple of inches at our deep end but it's still more than plenty deep for us. We are overall extremely happy with the shell so I'm not going to drive myself nuts now over a couple of inches. To me a well built pool outweighs one to absolute exact measurements. Being a handmade structure with lots of variables, I think it coming as close as they do is a work of art in itself.


    3.2 x 6m | inground concrete | ~27,000 litre | 1.2 - 1.8m | salt and pepper mini pebble | SWCG Atral eq35| Viron xt 1.5 HP VS pump | Astral CA280 sand filter | DB3 robot | 2 x LED lights | travertine coping and paving | ceramic waterline tile |

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    Re: New pool - tolerances from design

    OCD and ADHD, both my wife and I! God help our children.

    Thank you for the responses thus far.

    What worries me is I checked the rebar and it was spot on, so the 52" spot only has about 2" of shotcrete on it, a total depth of 8". Is this a concern?

    Thanks again,

    Mike

    - - - Updated - - -

    oh - I checked the top of the shell - variance is less than 1/32 of an inch.

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    Mod Squad Jimrahbe's Avatar
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    Re: New pool - tolerances from design

    Quote Originally Posted by mg9176 View Post
    What worries me is I checked the rebar and it was spot on, so the 52" spot only has about 2" of shotcrete on it, a total depth of 8". Is this a concern?
    I can't see why it would be....

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Caldera Spa.

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    Re: New pool - tolerances from design

    Well, we are in the Midwest, old pastureland. Expansive clay. Walls were shot at 14”. Wondering if 8” will hold.

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