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Hi 2face, I have now back filled the system and run plenty of water right through. I had the rads all closed, the feed from the tank closed, the vent stopped off, the boiler off but the motorised valve open for the heating side only (I chickened out of doing the hot water side as well on the...

Thanks breezer, Yes, I cannot seem to find a service manual either, which again seems strange. It's a good little vacuum and I will have to get inside, even if I have to break in! Cheers coldandtired

Can anyone help me please with a Miele Black Diamond vacuum cleaner? The cord will no longer retract back inside and I need to take it to pieces to resolve this, but there is no obvious way of separating the top from the bottom. I have done what I can, but I do not want to damage it...

Thanks 2Face, I'll let you know how I get on. I am just off to the plumbers merchants to get the copper pipe or see if they have anything purpose made, I'll get some inhibitor whilst there and some of that gunge reducing stuff which I can put in the system whilst I am draining it and can...

Thanks 2face....here goes...I guess it does not matter which of the pipes I attach the hose to, or better still, sould I send a blast of water through each one? I will secure the hose with a jubilee clip so that it does not come loose under pressure. Yes the motorised valves have the...

Thanks to all of you that are trying to help, it is much appreciated. In response to the suggestion from gas4you, I have been using the lockshield valves to blance the system. In respose to MANDATE, unfortunately it is not a 3-way valve, but 2 x 2-way valves, one for the hot water and one...

Hi 2face, I should also add that the pump seems fine as it heats the water okay, and when the downstairs rads were shut all the upstairs ones worked and vice versa. thanks again coldandtired

Thanks for the advice. I will try, does it matter which pipe I attach the hose to? Also, would this "flush the system at the same time? I do not have anyone to hel, so would it be safe to set it running and then keep checking in the loft? Cheers coldandtired

I have a Potterton Netaheat 50 which heats 5 rads downstairs and 4 upstairs (incuding a bypass rad in the bathroom). It is an open vented, fully pumped system fitted with a combined feed and vent. During the summer, many of the rads were removed for redecorating and the valves fully opened on...