OB Fiberglass Pool in South Florida

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Well, electrical didn't go so well. Turns out I've got a fifth 90 degree turn in my conduit and I'm only allowed four. We did agree that it looked good though. Junction box shopping now. Shouldn't be much of a set back.
 
Moving some gravel and sand today. After discussions with the concrete folks, the excavator and the inspector I'm adding sand from the hole on top of the gravel and washing it in. I realize it's not recommended in most of the country but here I think it's a different situation. I'm basically putting in a pool on the beach.

I connected a 1 1/4" discharge hose to my sprinkler pipe that's fed from the lake so I could direct the water to around the pool. It seems to be working well so far. Now I need to raise the water level in the pool as my backfill is getting ahead of it.

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Tomorrow morning. I cut the 5th one out and put in an access box. If the light ever goes out it'll be easier to pull through another one. I suppose that's some consolation. Whatever keeps us moving forward! Hope to finish the backfill and grading by the end of the week. Concrete is about 2 weeks out after some electrical work and trenching for hose bibs, etc. Looking forward to having the pump and filter hooked up.
 
Tym2Fish said:
This is my rudimentary equipment pad layout. Anyone see anything weird I should address? Also, thoughts on check valve between the filter and SWG? Is it necessary? I've read lots about it here but with everyone's set up being different it's a little difficult to sort out.
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Awesome writeup Tym2Fish. Not sure looking at this schematic but, make sure that power from your timer goes to both pump and SWG. Many articles here in TFP will warn you of this so that there is no way SWG can be on with pump off. If it does SWG will burn out. I say this cause I hooked mine up wrong initially but found mistake before powering up.
 
PhantomRIO said:
Awesome writeup Tym2Fish. Not sure looking at this schematic but, make sure that power from your timer goes to both pump and SWG. Many articles here in TFP will warn you of this so that there is no way SWG can be on with pump off. If it does SWG will burn out. I say this cause I hooked mine up wrong initially but found mistake before powering up.
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Thanks for the info! I'll mark that so I remember during wiring.
 

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Finished backfill and grading today. Concrete guys are happy with it so I'm happy with it. They said they could do the finishing around the pool for the rebar, etc. I compacted it with four passes today but they said they'd do it again. They're trying to schedule the pour for the end of next week, depending on availability of the concrete. *A note on running a compactor: fire it up, let it go and guide it lightly. If you try to fight a compactor it will beat you like you stole something from it.

I'm picking up the materials to run the pipes and conduit under the slab tomorrow and more digging for the trench from the garage to the equipment pad. 18" deep for electrical in pvc conduit FYI.

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kimkats said:
Did they suggest you water it good and deep to help it settle any more?
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Yes. Our sprinkler system is drawn from the lake so I adapted a 1 1/4" discharge hose to one of the zones and was able to use it to water the sand into the gravel. It was like running five garden hoses at once. Worked very well. After doing that about four times and the compactor it's quite firm.
 
Tym2Fish said:
I'm picking up the materials to run the pipes and conduit under the slab tomorrow and more digging for the trench from the garage to the equipment pad. 18" deep for electrical in pvc conduit FYI.
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The National Electric Code (NEC) requirements for the cover of conductors are defined in table 300.5 (see below). If the conductors are contained in a raceway (e.g., PVC conduit) in a trench below concrete that is 2" thick or greater, you only have to bury it 12" deep (column 3). If the circuit qualifies as a residential branch circuit rated for 120V or with GFCI protection and a breaker of 20A or less, the depth can be 6" (column 4). If your concrete is 4" thick with no vehicular traffic and the slab extends no less than 6" from the conduit you only have to go 4" deep. So unless your local (Authority Having Jurisdiction) code has stricter requirements, you do not have to go 18" deep. If you use direct burial cables without conduit, the minimum depth is 18".

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Thanks for the info. I'm running pvc conduit in a trench and wiring the pump for 230v. There is no concrete, it's the run from my pad to my panel in the garage. As per our inspector, 18" is required here.
 
Tym2Fish said:
I'm picking up the materials to run the pipes and conduit under the slab tomorrow and more digging for the trench from the garage to the equipment pad. 18" deep for electrical in pvc conduit FYI.
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Am I missing something here? Shouldn't the pipes and conduit already be run under the slab? I assumed you already had pipes and conduit run, and then compacted over the top of everything. I've never done this, but as an engineer, I'm very interested. Are you now trenching through the compacted soil, putting in pipes and conduit, and then re-compacting those areas?
 
PoolBrews said:
Am I missing something here? Shouldn't the pipes and conduit already be run under the slab? I assumed you already had pipes and conduit run, and then compacted over the top of everything. I've never done this, but as an engineer, I'm very interested. Are you now trenching through the compacted soil, putting in pipes and conduit, and then re-compacting those areas?
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We're pouring concrete next week so there is no slab yet. We had to compact during backfill as our ground is all sand here. Now I'll dig shallow trenches for the conduit and plumbing to go under the slab. We'll compact again around the pool prior to pouring. There may be a bit of confusion as there are 2 different jobs here. One is placement under the slab and another is running from the pad to the garage, which isn't under concrete. It is my understanding, and I'm just some guy putting in a pool, compacting over conduit should only be done by hand with a tamper, not a machine. And I think as long as the slab is 4" there is no required depth for the conduit.
 

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