[magpie]

Originally Posted by derekgas

If there is a requirement to bleed the radiators too often, then there is more than likely a leak in the system, or the pipework is incorrect and the air is being dragged in from the vent pipe. In any event, this causes more corrosion because it is the oxygen in the system which corrodes things. Mattylad, the minimum time for a powerflush is 4 hours, I recently did one that took 2 and a half days, I am afraid that with limited knowledge, you are a prime example of why this is not a diy job. The water ph level should be between 6 and 8, the total dissolved solids in the system should be no more than 10% different to the tap water, that is for starters, our kit cost £1200 or thereabouts, we have 2 of these, the testing kits cost £200 per unit, the cylinders have to be cleansed (chlorination), the training for that costs £395 per man, and the chemicals cost about £70, labour is 2 men minimum half a day, so if you know someone who can do this job, to MY standards, for £200 quid, give me thier number, because they can do all mine.

I agree but my landlord .... says they will not pay to put it right.... I have to put up with it:

Will this cost me more money to run the system if I keep on having to bleed the rad: thanks Magpie