pitching

timex711 wrote: »

ok i have been told by a member on this site that my heating is pitching. can someone tell me what this is?

the problem with my heat is, wen i turn on the heat it will work on a couple of rads, then when i bleed 1 of the radiators, water started comein out the overflow pipe to the back garden.

blackish water started to come out of the radiator when i bled it, and alot of the radiators where making a loud cracking noise which was heard all over the house. when i went out to the boiler, the thermostat read 100degrees.
now i know it supposed to be 20-40degrees so i know something is wrong here.

i have always had problems with certain radiators not working and that crackling noise.

what should i do?

thanks

I told you its pitching ,pitching is when there is too much of a pressure differential between cold feed and vent and results in the circulating pump , pumping water up the vent into the tank which is a very bad thing for your system. i told you get a plumber ,
In all likelyhood one of the following actions are likely
1. Some repiping of the , vent and cold feed to the expansion tank.
2. possibility of pump location being changed.

This isnt a DIY job to fix it , and without seeing the layout of the system and the pipework its impossible to tell you exactly what needs to be done via the net.
The 2 answers i said above are the likely avenues i would explore in your situation .

Because your system is pitching thats a good contributary factor to your system not working correctly .
Get someone in but try and get refrences first , im sure a regular on this site would oblige you with a refrence if you tell us your area.

I have to agree with outkast ire, he has hit the nail on the head you need a plumber to look at it.

you could also have the system sealed also it eliminate the pitching providing that you dont have a back boiler..

Its a hard one to quote because a plumber would need to have a look at it to see exactly whats going on. It could be from a couple of hundred quid to a couple of alot more quid!!! but one thing is for sure that pitching is not good for a heating system as it introduces oxygen in to the system and in the long run radiators will block up the so will your boiler.

Get a plumber out ASAP it will be worth it.