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#944071 - 08/31/18 06:51 AM Re: Inground pools, who has them? [Re: code_ceis]
sportster Offline
veteran

Registered: 08/11/04
Posts: 1284
Loc: South West Ohio
Code, that law must be for only certain states/cities because I couldn't find anything for Ohio, even in the revised code. Only if a building wall is part of the entry IT needs an alarm.

I'll ask about this more to other pool companies.

Punky, I'll have to check out those other heaters!

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#944087 - 08/31/18 11:58 AM Re: Inground pools, who has them? [Re: sportster]
Suenmark98 Offline
Handyman

Registered: 04/04/02
Posts: 705
Loc: Houston TX
You asked if we had staining on the white fiberglass stairs and swimout - nope, none in 7 seasons. They did need to be brushed periodically as the dimples would collect dirt over time

I am not familiar with the stray current issues folks have mentioned. I do know both pools I had built had all equipment, wire in the poured patio, etc all bonded together and tied to a ground rod
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#944175 - 09/02/18 10:23 AM Re: Inground pools, who has them? [Re: Suenmark98]
code_ceis Online   content
Carpal Tunnel

Registered: 04/29/09
Posts: 11854
Loc: muttonville,ny
Quote:
tied to a ground rod


Big mistake (often required by code guy) it is not grounding, grounding is for lightning protection.

The reason is to bond everything toghter so it is an equal-potential plane.

So you do not become the path for stray current.
NEC bonding info. Local rules may vary due to soil types.
Quote:
9. All metal parts must be bonded together with a No. 8 or larger solid copper wire must be used.
(Motor, ladders pool frame, diving board, lights, etc.) 680-22 / E4104.1
A minimum of 9 square inches of metal must be in water to bond water.
10. Perimeter equipotential bonding all pools shall have #8 CU 18 -24 inches out 4- 6 inches deep if no
concrete with wire or mesh in it. 680.26 (B) (2) (Your typical above ground)
11. Inground pools with conductive shells require special bonding of all metal parts and bonding at all
four corners. Consult with the pool installer for specifics.
12. When bonding pool frame or any metal parts to main bonding wires or wire mesh, you must
use non-corrosion clamps. 680-22(A) (B) / E4104.1
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#944411 - 09/07/18 07:37 AM Re: Inground pools, who has them? [Re: Punky]
bilvihur Offline
Carpal Tunnel

Registered: 02/04/05
Posts: 3375
Loc: Hudson Valley, New York
Originally Posted By Punky

It's correct. The pool displaces more water than it weighs, so it floats. Sump pits are the same way (and ships, too!)


True Story: Years ago, our fire company was called out in the middle of an early spring rain storm to fill a swimming pool! Seems the owner had emptied his in-ground pool to do some repairs, and the rising water table from all the rain and snow-melt was lifting it out of the ground.
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#944413 - 09/07/18 08:03 AM Re: Inground pools, who has them? [Re: bilvihur]
CabinConnection Offline
Bigfoot
Carpal Tunnel

Registered: 01/20/04
Posts: 52791
Loc: The Indianhead's Left Nostril....
In my swimming pool building/servicing days in Chicago, we had to be REAL CAREFUL when we pumped a pool down. Especially in the spring. Often we'd install hydrostatic relief valves in the bottom to relieve pressure.

More than once we were called in to "salvage" a pool that had floated up out of the ground.

BONGO BUCKS if it floats!

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#944418 - 09/07/18 09:38 AM Re: Inground pools, who has them? [Re: CabinConnection]
code_ceis Online   content
Carpal Tunnel

Registered: 04/29/09
Posts: 11854
Loc: muttonville,ny
You find strange things in pools.

_________________________
"I have studied many philosophers and many cats. The wisdom of cats is infinitely superior." - Hippolyte Taine

“I always get to where I’m going by walking away from where I’ve been.”
— Winnie the Pooh


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