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Re: Inground pools, who has them? [Re: code_ceis] #944071
08/31/18 10:51 AM
08/31/18 10:51 AM
Joined: Aug 2004
Posts: 1,291
South West Ohio
S
sportster Offline OP
veteran
sportster  Offline OP
veteran
S

Joined: Aug 2004
Posts: 1,291
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!

Re: Inground pools, who has them? [Re: sportster] #944087
08/31/18 03:58 PM
08/31/18 03:58 PM
Joined: Apr 2002
Posts: 770
Houston TX
S
Suenmark98 Offline
Handyman
Suenmark98  Offline
Handyman
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Joined: Apr 2002
Posts: 770
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


Mark
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Every day is good, and some are even BETTER !!!!
Re: Inground pools, who has them? [Re: Suenmark98] #944175
09/02/18 02:23 PM
09/02/18 02:23 PM
Joined: Apr 2009
Posts: 12,308
Bristol,ny
code_ceis Offline
Carpal Tunnel
code_ceis  Offline
Carpal Tunnel

Joined: Apr 2009
Posts: 12,308
Bristol,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


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

Do not be a Monday. No one likes Mondays.

Re: Inground pools, who has them? [Re: Punky] #944411
09/07/18 11:37 AM
09/07/18 11:37 AM
Joined: Feb 2005
Posts: 3,528
Hudson Valley, New York
bilvihur Offline
Carpal Tunnel
bilvihur  Offline
Carpal Tunnel

Joined: Feb 2005
Posts: 3,528
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.


MSI Mobo, Phenom II CPU, Win 7/64 Premium, 8GB DDR3 Ram, Chrome, Avast, Malwarebytes
Re: Inground pools, who has them? [Re: bilvihur] #944413
09/07/18 12:03 PM
09/07/18 12:03 PM
Joined: Jan 2004
Posts: 53,855
The Indianhead's Left Nostril....
CabinConnection Offline
Bigfoot
CabinConnection  Offline
Bigfoot
Carpal Tunnel

Joined: Jan 2004
Posts: 53,855
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!

Re: Inground pools, who has them? [Re: CabinConnection] #944418
09/07/18 01:38 PM
09/07/18 01:38 PM
Joined: Apr 2009
Posts: 12,308
Bristol,ny
code_ceis Offline
Carpal Tunnel
code_ceis  Offline
Carpal Tunnel

Joined: Apr 2009
Posts: 12,308
Bristol,ny
You find strange things in pools.



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

Do not be a Monday. No one likes Mondays.

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