hi, i recently had a new kitchen put in and a rad taken out, unfortunatly the people who removed the rad left the drops in and the flow connected to the top off the rad so i now have a 22mm dead leg comming up for about a meter in the middle of my kitchen wall! not good! i want to remove it and am quite capable of simply cutting the pipe and capping off but im wondering if im going to have to drain down the whole central heating system just to remove the deadleg or if there is another way?
deadlegs
- Thread starter jamesben
- Start date
You could buy a DIY freezing kit and freeze it rather than drain down.
They do work but if you haven't done it before you probably would be better draining down.
Inhibitor yes balancing no.
Er, if you regard adding inhibitor to the system as "messing about", then you will indeed to have mess about.
No. The removal of water from, and the later addition of water to, the system does not require any adjustment to any radiator valve.
You're probably confusing "draining down" with "unnecessarily inventing unnecessary tasks". These are two quite distinct and non-overlapping concepts.
In that case it's a task that you're not well equipped to tackle.
lol ok thanks guys im not a plumber but can do the basics in my own home where i dont have to worry about upseting anyone but the wife! just wondering if it was a job i could do myself or something that needs a profesional
If its a sealed system I.E a combi boiler you have. You could simply drop the pressure via a drain valve, Close the drain valve to seal the system again, Cut and cap the pipe and re-pressurise the system. The water will hold in a sealed system (a bit like holding a glass full of water upside down in the bath). You will get a bit of water loss witch will dilute the inhibitor but a standard dose usually covers a boiler and 10 rads anyway.
ok as i say im not a plumber so forgive me for asking stupid questions but i have just been having a look behind kitchen cupbords and there is a gate valve on my flow pipe! im a builder by trade and never seen that before (just moved in to the house) im gussing i can just turn water off via gate valve nice and easy?
Yes, if (a) that valve holds up and (b) there's a equivalent valve on the return pipework.
If you try to do it just by dropping the pressure as suggested and the aav is open on the boiler you will get very wet cos the system wont be sealed, obviously I didn't find this out the hard way it was a mate etc etc 
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