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I can't say whether an inspector will accept "permanently closed" or not, that would likely depend on the particular inspector and how "permanent" the means used to close the window is. If this is a single-story house one alternate fix might be to add a flue pipe to the unit and duct the...

Before you go any further, that window is a problem. You need at least 4' between the heater and any window that can open.

While it's possible, assuming that the maximum draw of the pump+SWG+light is less than 80% of the rated circuit capacity (16A if it is a 20A circuit). I would also recommend against it. Post a picture of your panel so we can see what you have. Adding "twin" breakers might be an option.

I would consider adding exterior sconce fixtures high on the pool facing side some some or all of the columns on the pavilion. And also something inside the pavilion. There's lots of choices, and much will depend on your budget, but multiple lower-brightness fixtures will provide much more...

I can't image that it went any further than the first elbow. Does your skimmer have an equalization line or a line plumbed to the main drain? If so and if that's the side it went down then it's quite possibly several feet down the pipe, and likely impossible to retrieve. The line going to...

I posted a full thread on the build here: https://www.troublefreepool.com/threads/another-new-pool-in-southern-california.245119/

If the lamp is a normal incandescent then it would probably burn very brightly for several seconds before it failed. However is the lamp is an LED fixture it might have been perfectly happy with 240.

Since your design is a rectangle I would suggest that you consider adding an auto-cover. Will keep the pool warmer and cleaner, as well as providing a significant safety benefit. I've had both stand-alone fiberglass hot tubs as well as our current gunite hot tub attached to the pool, and...

Indeed that's a consideration in favor of keeping the pump and SWG on 240. 16A is the maximum allowed connected load on a 20A circuit (80%), so to add 1-2 amps for the SWG takes you over the code limit at 120V.

Actually there's no reason to swap that breaker (unless you think that the load is getting close to it's 15A rating).

Unfortunately the "line of sight" rule works the other way. The idea is that someone working the equipment would be able to see someone turning the power back on. If that lattice under the deck is easily removable such that you can argue that someone working on the pump would be working from...

One thing I would double check is to make sure the breakers in positions 13,14 are not wired to anything else besides the contractor box. It doesn't look like it in your pictures, but looking close it looks like the wire that used to connect to the breaker in position 13 has been extended (wire...

After doing a bit of google searching I can see why you would be considering replacing that stab-lok panel. While breakers are available I was unable to locate any 2-pole GFCI breakers as would be suitable for feeding your pool equipment. If you go down that road I would also recommending...

The advantage of 240 vs 120 is that it takes 1/2 the current to deliver the same amount of power down the wire, which means 1/2 as much power lost in heating the wires (for a given size of wire). For things with very heavy starting current like air-compressors, or HVAC compressors this helps a...

Indeed, and likely your water heater is a modern variable speed inverter driven unit that can work efficiently with a large temperature difference. Most swimming pool heat pumps don't fall into that category (but there are a few makers out there, a web search turned up this Canadian company...

I think a heat pump would be able to keep the pool warm May-Oct but without a cover you will probably use up all of that "free" electricity and then some. You could probably get a pretty good estimate as to how much by turning on your gas heater now for a week (while we have May gray...

When I first started my SWG in late 2021 I purchased Morton's "Professionals Choice" salt from Home Depot and it was great, very finely ground and dissolved almost as quickly as it hit the water. Fast forward last fall when I needed to add more salt I purchased the same product, and it was very...

Autocovers are designed to rest on the water surface. They typically float on the surface everywhere except for a few inch wide area around the perimeter of the pool. There is no "fix".

Head up: The Lowes in Torrance (and possibly other LA area locations) has 31% MA for the first time I've ever seen. It's KemTek brand $15 for 2 gallons. There is a stack of the 14% KemTek product right along side, also $15 for 2 Gallons. The Lowes web site doesn't acknowledge that the 34%...

I suggest option 1a, option 1, but use the wireless extender you have and get a good NEMA rated enclosure for the wireless extender, and also to enclose whatever power supply the wireless extender has. If were me I would probably go for #2. My current aqualink is hardwired (an IQ3) and have...

I assume that part of your plan is to have the new 1000L tank gravity fed from the catch basin, and that the catch basin will normally be empty or near empty. The thing to consider will be the flow rate in that gravity fed line, If four 80 kG (~= 80 L) persons enter the pool your basin will...

I would vote for two as well. Prevailing wind direction doesn't really help to predict which corner of the pool the floating debris will want to float to, the surrounding buildings, fences, trees, etc make the breeze swirl in very unpredictable manner.

That box looks like a standard name-brand aluminum weatherproof box to me. Likely one of these: https://www.homedepot.com/p/Commercial-Electric-3-4-in-Gray-2-Gang-5-Holes-Weatherproof-Box-WDB575G/300846319 Assuming Josh fits it with an appropriate cover with gasket it will be just fine.

Yep you've pretty much got it figured out. 20A circuit should be 12 Gauge wire for all 3 wires (black, white and green), no need for anything heavier for a 400 W load. And yes you are correct the box needs to be tied to the ground as well. The typical method is to attach a short length (6")...

True, but it will save several thousand gallons of Colorado River water which is still in short supply. (If indeed that is the source of the OP's water). As I recall for at least some Phoenix area water companies there can be a sever impact on your bill if you choose the wrong month to...

You can probably get a pretty accurate model of the heat loss by heating the pool and then observing the 24h drop in temperature. Convert the loss to BTUs and then divide by the difference between the average pool temperature and the average air temperature in the period. You have a cover so...

One option to consider is having one of the companies that do reverse-osmosis treat your pool.

The calculations in question are really not that complicated and in the end just reduce to understanding what the units mean. Gas heaters are rated by the number of BTU/hr of natural gas (or propane fuel) they consume. So the "gotcha" there is you need to multiply that rating by the efficiency...

If you think your FAS-DPT test is behaving non-linearly, there is a straigh-forward way to check that. First create a sample that is known to be high in FC, perhaps just add a cap full of 10% bleach to 5 Gal bucket of water. (Should end up around 15-20 PPM FC). Test the sample, then prepare a...