unheard

As someone has mentioned in this thread. If you're experienced in the field and know what you're doing. Great! Then you definitely don't need to rely on anyone to complete your building tasks. This is not what this discussion is all about and your proclaims about nonexistent Thai "quality" are misleading. There are many quality tradesman in Thailand. The trick is to learn how to find them, and how to take into account associated cost differences (often very significant) since the field's hierarchy is not the same as in the west.

I'm not sure what you're trying to imply here. We're talking about general trends here.

Pattress boxes may be made of metal or plastic.

I'm drawing my conclusions from real life examples on two different construction sites. Both sites use licensed electricians. Are you saying both of them are out of compliance? Your assumptions sound quite reasonable but at the same time I find it difficult to believe that both electricians in my example have broken the code since there's no any incentive for them to do that, not even a financial one. btw, is there a specific code? I'd really like to get a confirmation from someone closely familiar with the Thai electrical codes.

Now you're getting me real confused. My "why" question was related to your statement on the metal boxes needed to be earthed properly. Do they ever get earthed in such installs, here in Thailand? It's an honest question. Is there such a requirement? And if there is, then why would the builders over here favor metal boxes over plastic? The plastic ones would require much less work... We're talking electrical installations with earth/ground wires utilizing either metal or plastic boxes connected to standard plastic conduits, not the old school all metal box-to-conduit earthed systems. So far I've seen just metal boxes being used in two different house designs, all connected to plastic conduits.

yes, lots of things can happen mechanically during improper installation. But really what's the probability for any of such events if done by even a half-competent electrician? If the electrician is that incompetent to badly screw up wiring of the simple box then I think the difference in safety of materials of the box itself would not really matter and be the least of the house owner's concerns.

btw, the higher prices charged by the out of town builders will also include the expenses for housing their teams in near proximity to the building site. The reason you don't see any of those in your area is there for the very obvious reasons. Quality is not cheap.

Deep in the sticks you usually don't have much of a choice for a local based builder. It surely won't hire anyone far away from town. And yeah, prices are great. At the same time even In the middle of nowhere you can still get quality big city based builders that will send specialized teams to your location. But the prices won't be nearly as cheap as with local "changs". And please don't say no one does it just because "you don't see any".

????

I don't recommend, don't use and have no helpful info on that type of pool sanitation.

What is the possibility of wires becoming live? What can possibly happen to insulation?

That's all fine, but can you comment on why do Thai builders are still commonly using metal boxes instead of switching to plastic as observed in the west?

Why?

"UV light can kill pathogens and some of the units also produce some ozone but this only occurs in the contact chamber and there is no residual effect in the pool. Once again, more useful in a spa than a pool." https://www.troublefreepool.com/threads/alternative-sanitizers-and-chemical-free-pools-the-truth.2834/

OK, thanks for the clarification.

An interesting question (plastic vs metal box). I wasn't even aware of the plastic boxes being used in Thailand. Right now I'm observing two houses being build by a very high-end (many expensive farang houses) and low-end building companies. Both are using metal boxes.

That's not correct. From what I've seen the established high volume house builders (not cheap) will directly employ specialized crews being sent to remote sites. If not directly employed then at least utilizing vetted contractors on a long term bases. All depends on quality of the builder and who they employ. Quality cost money, as everywhere else.

Not sure exactly what you mean by writing that... Salt water generators do require a specified by the manufacturer water salt content. But there's definitely more to it than just throwing in a bag of salt here and there. It's not as simple as you make it sound. The key to proper pool maintenance is periodic testing of water chemistry, including for salt levels if equipped with a SWG system.

tomster, you can start on this site - every info you'll ever need to learn to properly maintain your own pool. https://www.troublefreepool.com/blog/2019/01/18/salt-water-chlorine-generators/

Isn't the norm here a single-split system? Multi-splits are common and have their own use case. But... The modern single-splits now mostly utilize the more efficient R32 refrigerant allowing them to be significantly cheaper to run as compared to multi-splits. It seems most of multi-splits are still on the less efficient R410A.

Could you please elaborate on what you mean by this statement?

Rubber seals are not known for their longevity.

You should really remove that tree ASAP. I can't even imagine what all that organic matter does to your water chemistry. Do you maintain the pool yourself?

Those options are all great as long as you're prepared to pay for them.. In the west the cost of double glazed, tempered glass, argon filled windows is nothing special as compared to the rest of the build. Here's a completely different story.

same as with dust But what is exactly the problem? Just about any attic has at least minimal atmospheric ventilation built in via perforated soffits (usually in the roof's corners). The roof itself is almost never hermetically sealed. The difference being that the "ventilated attic" is much more open to atmosphere by allowing better air movement within its structure and at the same time still staying sealed from the living quarters as with any "normal" attic. Does it really matter how much additional dust enter the attic since it's already super dusty?