Locating Water Leak in Galvanized Pipes Hidden Under Plaster & Tiles without Thermal Imaging

How to locate (at home - is it possible at all? Without thermal imaging) where there is a water leak? The pipes are drawn in the walls under the plaster and tiles
(2000, galvanized, screwed). While filling the installation with water, I noticed a leak through the hole in the ceiling (in the basement) with the ceiling lamp pin. Akkerman ceiling, probably the water goes through the canal . There are tiles on the walls of the ground floor (bathroom) and you can't see anything. A fairly large leak, about 1 drop per second.
I'm afraid to think about what awaits me , I only have a few replacement wall tiles, so I want a relatively precise leak location. For over a year the installation was empty (drained water) I thought the hemp had dried up but that's unlikely?
Thanks in advance for any advice and suggestions.

MM2X wrote:

Galvanized twisted pipes. I only have a few replacement wall tiles, so I want a relatively precise leak location.

Even if someone tells you - it is leaking on the elbow under this tile, what will it give you? You won't rewind this thread. IMHO remove all of these 19th century pipes, give safe, welded PP and accept the fact that the bathroom needs to be tiled anew.

William Bonawentura wrote:

Even if someone tells you - it is leaking on the elbow under this tile, what will it give you?

If there was such a magician I'll pay you every cash . I will replace, cut, insert - here I have ideas.
Bathroom tiles 2x3m, massacre .

10 years for galvanized pipes is that long? Yesterday the installer suggested something like this - heat the bathroom so that the walls are warm, then let cold water into the pipes in the basement put buckets under the leak. It is more or less known how these pipes run. Dew appears on the plates at the leakage point, or use a temperature probe to measure the temperature on the plates. Where the leak is lowest. This is an idea.
Yesterday I found 1 carton of wall tiles and one for floor tiles and that inspired me more . If it weren't for the chimney cut, I would have reached the pipes on the other side, and then a leak would probably have appeared there.
Maybe someone has a different idea?

Is it possible to pull new pipes from the other side of the bathroom and forge only new approaches to the receivers?

Well, unfortunately not, it is a chimney wall .

MM2X wrote:

10 years for galvanized pipes is that much?

My point is that it was unwise 10 years ago to use the expensive, emergency and health-damaging technology of steel pipes. You can also try connecting the installation to the compressor (with the tank) and auscultation of the walls with a stethoscope in search of a hiss.

To get dew on the tiles, you need not only to be hot, but - above all - high humidity, steamed.

If you know where the pipes run and where they are joined, then below these places between the tiles you pull the grout, if you find a leak, the plaster under the grout should be very damp. You can also use a thin drill bit between the plates in the joint to make holes as far as the pipe (do not drill through the pipe), if the dust is wet, you are close to the leak, drill a few holes in the circle until the leak is exactly located. By the way, during this year, when there was no water, you did not install bathtub faucets and other sanitary devices there, if so, I would first check the cams for setting the faucets and their surroundings.

William Bonawentura wrote:

My point is that it was unwise 10 years ago to use the expensive, emergency and harmful technology of steel pipes

A donated horse is not looked in the teeth Seriously, my father-in-law put it on. I used to read that zinc compounds (but I don't remember which ones?) Kill bacteria and viruses in water, but I don't know if that's true. Regarding the health effects of PP pipes and other plastics, the writing is also not very good . But that's not the point, thanks for the stethoscope advice, you made it right .
Bonanza probably not really ?, warm in front, on the other side cold water and then it condenses, or I'm wrong .
Dzolo35, it is so simple that it is impossible that a man has not thought about it, thanks to fest. I haven't installed anything since it was not used.