Top Tip For Draining Central Heating Systems
My top tip and best advise for draining central heating systems is dont try this at home ! Your much better off getting a professional in like my self if your in the Portsmouth area . Its not that its a hard job , any competant diy guy can drain central heating systems . The thing is any mistake can be costly and mistakes are often made doing this . A plumber drains central heating all the time and so is experinced , a builder or diy guy isnt , also a professional plumber has insurance ! if they flood your carpet ! If you still want to do it yourself ok here are some tips worth considering before you start .
Before Draining Central Heating Tips
Before draining central heating systems ensure its a vented system the type with an expansion tank in the loft other wise known as a header tank (with toilet bullcock!). Combi boiler type heating systems are much trickier and are best to call the plumber .
Make sure the boiler or pump cant start up by switching every thing to the off position and zero the thermostat dial , remember to put back to how they were !
Prepare tools , 2 trays (that fit under !) , bucket , hose , rags/towels (and a friend incase any mistakes ;)
Remember to take up the loft a broom or something to put across tank and a bit of string to tie the bull cock up .
Inspect the ball if there is water inside replace it they only cost a few pennies !
Open the upstairs bleed valves slowly to allow the water to run out faster , when the pressure has dropped open the downstairs ones .
When the water has stopped it dosent mean the system is empty ! there could be an air lock , read on !
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