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I always run my CH system with citric acid as standard. I even have an injector port to introduce it into the system so I don't need to drain down

scale is built-up and the fins as they are so thin they easily coat so its the same either side.

I have a tunnel network on the lower level which goes off into 5 different areas so it was not until I checked all areas that I found the issue.

citric acid from ebay *(powder form). Fill the exchanger with the crystals and add hot water until it starts to come out of the holes. Then heat the unit with a blow torch until it starts to boil. The water will turn green. Let it boil for 10 minutes and then rinse. Repeat until the water colour...

I replaced all of the showers in the house with these simple mixers. Cartridges always fail and can be very expensive. I use a continuos water heater for the showers so we tell it what temperature it should be and it will never go higher or lower (flow rate might change)

each radiator (16) can be isolated and drained without having to drain down the system. So there is a drain pipe and valve that comes off the return side so it dumps the water.

i had sound proofed a floor by adding a lot of mass (cement boards and insulation boards and 18mm chipboard from under the floor. I could not hear the gushing water until I went under the floor to inspect. Still, I know the sound insulation is working :-)

resolved. Open valve on a radiator.

well they are in a void but easily accessible for checking...which is how I know

No and No

it takes around 3 minutes to read 1 bar and 20 seconds to read zero...incoming is at 6bar

it was. Cant vent the rads as they are not getting pressurised zen combi

Having made some pipe diam changes over the summer I thought it would be a good idea to fill the system and check it, ready for the winter. On filling the circuit I noted that it seemed to be taking longer than usual to fill so checked for leaks and started to refill again. Got the circuit to...

whatever software you BUY will be linux...I'll take any bet with you on that. But as you point out, if all you have ever been is a simple user of a simplified system (windows) then you will have zero comprehension of how computers actually work. Its not your fault mind, it was made this way so...

yes. and they made boats out of hollowed logs, rushes, animals skins...I'm sure that the titanic was made from cardboard...but it was waterproof cardboard...marine cardboard they called it

I would start by emailing or writing to this person and invite him to return and then point out the defects and ask how it is he did not see these. Make sure you record the visit on your phone but make sure he does not see you doing this as this might spook him. Then ask him for the details of...

Perhaps you should be made aware that marine ply does not mean its waterproof lol If you are not using cement boards or foam boards then you are wasting time, money and will be having problems with leakage and rotting in the near future.

I'm spray painting bedrooms at the moment (40 years of roller painting) and the quality of finish is of no comparison (spray is better for me). The preparation time is daunting though but once complete, rooms are covered in no time at all. In any job, preparation and keying are the essential...

mmm you have a master....wow

Linux has the answer and will perform whatever you need at zero cost and maximum efficiency.