Hot Water Pipe

[Lost in LOS]

I go daily to check on my house construction. today I see the plumber is using galvanized pipe for the hot water pipes. I stopped him immediately. Galvanized pipes haven’t been used in the US for a long time, we use copper pipes since the galvanized wont last very long. the question is what are the alternatives here? does Thailand have PVC pipes that are approved for hot water?

Do they have copper pipes here and know how to install them . Any suggestions would be appreciated.

thanks in advance for your help

jimmy

[Naam]

I go daily to check on my house construction. today I see the plumber is using galvanized pipe for the hot water pipes. I stopped him immediately. Galvanized pipes haven’t been used in the US for a long time, we use copper pipes since the galvanized wont last very long. the question is what are the alternatives here? does Thailand have PVC pipes that are approved for hot water?

Do they have copper pipes here and know how to install them . Any suggestions would be appreciated.

thanks in advance for your help

jimmy

copper pipes are available Jimmy and every plumber should know how to solder them. even the most stupid plumber which i used building my home knew it.

[Lost in LOS]

I go daily to check on my house construction. today I see the plumber is using galvanized pipe for the hot water pipes. I stopped him immediately. Galvanized pipes haven’t been used in the US for a long time, we use copper pipes since the galvanized wont last very long. the question is what are the alternatives here? does Thailand have PVC pipes that are approved for hot water?

Do they have copper pipes here and know how to install them . Any suggestions would be appreciated.

thanks in advance for your help

jimmy

copper pipes are available Jimmy and every plumber should know how to solder them. even the most stupid plumber which i used building my home knew it.

Then I just cant imagine why they would use galvanized because of its short life. It is harder to install than copper and probably close in pricing. I guess this is just Thailand........

There is a pvc pipe that can handle hot water, do they have that here?

[SamSipEt]

There is a pvc pipe that can handle hot water, do they have that here?

Try your local solar system supplier because some of them use the pipe that you are after.

[chownah]

Actually galvanized lasts for quite some time in some places. I've worked on a few galvanized pipe systems in old houses in the US and I believe that all of them were 20 years old or more before they had major problems. I don't know if copper lasts any longer but I think mostly they use copper because it is (in the US) cheaper than galvanized mostly because installation is much much faster. I think that galvanized is probably OK so long as its good quality pipe.

Chownah

[basjke]

I go daily to check on my house construction. today I see the plumber is using galvanized pipe for the hot water pipes. I stopped him immediately. Galvanized pipes haven’t been used in the US for a long time, we use copper pipes since the galvanized wont last very long. the question is what are the alternatives here? does Thailand have PVC pipes that are approved for hot water?

Do they have copper pipes here and know how to install them . Any suggestions would be appreciated.

thanks in advance for your help

jimmy

Probably they were using syler pipe which is a galvanized pipe with polyethylene lining inside.

[qualtrough]

I recall a lot of galvanized piping in some of the homes I lived in in the US, and don't recall any problems with that. I recall a lot of bathtubs with ruststains though. I think with normal water it would take a long, long time for a galvanized pipe to wear out. We built our house here 10 years ago and have a length of galvanized pipe for hot water. No problems to date, and no rust either. As it is buried in concrete is probably won't matter much if it eventually does rot away.

[Somtham]

Then I just cant imagine why they would use galvanized because of its short life. It is harder to install than copper and probably close in pricing. I guess this is just Thailand........

There is a pvc pipe that can handle hot water, do they have that here?

If you want to run hot water through plastic pipes then you need to find a supplier for CPVC. It can handle the heat and pressure and is joined with solvents same as PVC.

rgds

[elkangorito]

Gal pipes will last quite a while, providing the water through them is not 'hard' (mineralised), as this will cause electrolytic action.

If I had to choose between copper & PVC, I'd pick copper every time - can't go wrong with it.

[chownah]

Don't bury copper pipe.

[technocracy]

We have just had installed a flexible plastic piping install that has an inner aluminium heat protection then another layer of the plastic on the inside.

This will take water upto 60C - they installed it in the space of a day very simple. No soldering required - they just have a specific pipe cutter the connectors also are just screw on.

I believe it's chinese or korean judging by the writing on it.

[stevejones123]

What's the problem with PVC pipes and hot water. If the pressure is low will there be a problem?

[technocracy]

What's the problem with PVC pipes and hot water. If the pressure is low will there be a problem?

It's more to do with standard PVC melting as has been hinted towards in other posts.

[stevejones123]

How hot does the water to be for the PVC to melt?

[backflip]

Even regular white PVC pipe will handle "hot" water. The problem is that, long term, the pipe will lose its structural integrity and break. A non-metallic piping alternative is "PEX" plastic, and I'm not sure of the availability in Thailand. I'd follow a previous posters advice: use copper. It's easy to install - sweat soldering is a breeze - and will last longer than you.