Good afternoon, dear guests and subscribers of my channel.
If you are familiar with my blog, then rather - you know that before the construction of a new house, my family had to live in a small old house, consisting of 2 walk-through rooms of 16 sq.m., a boiler room and a modest kitchen, the area of which was only 5 sq.m. The total area of the house is 42 sq.m.
We bought this "shed" because of the good and convenient location of the site and after the paperwork, I immediately started building the house of our dreams :-)
But, we needed a place to move somewhere for 2-3 years, while I build a house, therefore, in order not to run to a rented house, it was decided to stay in an old bought house. Then I, without wasting time, hastily made an inexpensive repair, including an inexpensive polypropylene heating system.
Our days
Exactly 3 years have passed since we bought all this stuff. The move to a new house has already taken place and now it is time to improve the local area and free the site from all unnecessary buildings and sheds.
First of all, in the old house, I started by dismantling communications: heating, water supply and electrical wiring.
I did not make drain taps on the system, so my pipe cutter cut straight into the lowest point of the coolant supply pipe of the temporary heating system :-) Then, in the return... Thus, I have drained all the water from the system:
After that, I removed the radiators, drained the remaining water and proceeded to completely dismantle the pipes.
Cutting off the next section, I noticed the dark rough walls inside.
I was amazed at the state of the pipes. It seems that this is just one big minus of polypropylene that began to appear - oxygen penetration into the system, or, scientifically, oxygen diffusion or oxygen permeability.
The problem is clearly visible.
In fact, I have not yet had a chance to disassemble recently installed systems on a PPR, but I heard about the problems of oxygen penetration for a long time. Now I saw.
This is not rust. The coating is dark-dark brown, very close to black, easily peeled off. It is likely that it can gradually clog the heating system over time. The boiler is still working, but on average, it displays an error about the heat exchanger overheating once a week. Rather, it is difficult to move the coolant along the circuit. Now it is clear that there is sediment and cleaning is required.
If such a situation really takes place, then oxygen, penetrating into the heating system through the pipe walls, will also initiate corrosion of steel elements.
I did not know... In the new house, I also made the wiring from the boiler to three collectors made of polypropylene, only of gray color, supposedly Czech. But, at least it is open and must be quickly replaced. It remains to monitor the state ...
Probably, to exclude such situations, it was necessary to use polypropylene with aluminum reinforcement instead of fiberglass, it certainly prevents oxygen diffusion through the pipe.
This happens, I saw it with my own eyes.
If you are faced with such deposits on the pipe walls, share what it can lead to ...
I hope the article was interesting and useful to you!
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