An Old Swimming Pool Kid.: Vinyl Lined Pools

Posted on January 3, 2012 – 00:00

As I was doing research recently on vinyl liner fungus I came across the International Code Council (ICC) Acceptance Criteria for Vinyl-Lined Residential Swimming Pools (AC279). I found some of the information very interesting. This is not information that most builders, retailers or customers ever see but I find some of it very important. Of special interest to me is section 5.2 which states:


Pools and spas may be installed without a soil

investigation by a registered design professional (RDP),
subject to the code official’s approval, provided none of
the following conditions is encountered at the site:

(In most states a Registered Design Professional is an engineer or architect that has been certified and licensed by the state)


The existence of groundwater within the depth

of the pool or spa excavation.

(This would lead us to believe and we would be correct in assuming that once you excavate and find there is groundwater then an RDP needs to do a soil investigation to see that your structure will uphold under the soil conditions. This cost could be hundreds of dollars. I do not know of any builder of residential pools that does this. Nor have I seen any code inspector inspect the excavation to enforce this. However in years down the road and excessive underground water at any time the pool structure can be compromised causing major repairs. I have seen this often in the area in which I serve which is a coastal community with sandy loom soil. As shown through a school science project and shared to me by the parent who happens to be a well versed scientist, sand when wet liquifies therefore no longer bein a supportive foundation. This can cause vinyl liners to have "sink holes" regardless of compaction during construction.)


Blue Devil See Thru Triangle Vacuum Head For Vinyl Lined Pools
Lawn & Patio (Blue Devil)
  • Triangluar design efficiently cleans corners
  • Brush bottom and bumper perimeter protects pool vinyl liner
  • Weighted - stays at pool bottom
  • 1-1/2" / 1-1/4" swivel hose connection for twist free performance

You have never heard of vinyl lined pools???

2008-05-02 12:19:49 by ------

I guess you haven't really done any research into the pool buying yet have ya? Every above ground pool has a vinyl liner. Many inground pools have vinyl liners. The ones that don't are made out of concrete or gunnite, and are substantially more expensive (tens of thousands more than the vinyl liner pools.)
check it:

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Hydrotools Swimline Hydro Tools 8145 Clear Weighted Triangle Pool Vacuum Head
Lawn & Patio (Hydrotools)
  • Weighted vacuum head for pool cleaning
  • Designed for fiberglass and vinyl-lined pools
  • Triangular shape is ideal for cleaning pool corners thoroughly
  • Angled brushes for quick pick-up of debris
  • Fits standard 1-1/4-inch and 1-1/2-inch vacuum hoses; Snap-Adapt handle for easy assembly
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Hydro Tools NA402 Protective Pool Ladder Mat and Pool Step Pad, 45 by 60-Inch
Lawn & Patio (Intakt Clothing MyHabit)
  • Safely eliminates one of the most common causes of vinyl liner failure
Atlas Glove Atlas Glove WG772L 26-Inch Long Sleeve Nitrile Coated Cotton Lined Work Gloves, Large
Home Improvement (Atlas Glove)
  • Tough Nitrile coated gloves protect hands and arms from chemicals, puncture and abrasion
  • Excellent dexterity and fit
  • Fully lined with 100% cotton
  • Machine washable
  • Excellent for: cleanup, commercial fishing, chemical handling, food processing, pond cleaning, and handling greasy and oily equipment.

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