a well installed and commissioned radiator system should never need flushing

at least not in the lifespan of a boiler (20 yrs?)

sludge is a symptom of a sick system so flushing will remove sludge but wont cure the root cause (system design/ leaks etc)

definitely worth flushing and fitting a magnaclean if youre having a new boiler/altering the ststem

otherwise try to find out whats causing the problem first

I hate british gas, they become increasingly rubbish as greed gets ever more important than service. The engineers that call at the house seem mostly decent chaps though.

couldn't have put it better myself and i speak as on of these "decent chaps"

BG are , like most big companies, greedy and aggressive in the market and as an employer

however they have one saving grace which is a highly skilled conscientious workforce of installers and service engineers so while i cant and wont defend BG business practice i still think they provide quality service

back to the OP depends where he was waving his magnet

radiators are magnetic anyway so that is bogus

copper pipes arent unless theres corrosion/ sludge but even then its not always conclusive proof

no experience of viessmann but i can recommend vaillant or worcester bosch

i'd also advise steering clear of most other makes of combi

got a pompino and its a big grin

kaffenback i think is v simlar but with those gear things

flat-barred pompino is a bargain at 500 quid

very nice cheers for the (ahem) heads up on that

egg in a cup and a brew and joan baez

i 'kin love bath ales

modern boilers dont need ventilation

condense waste could be ok if there is mains drainage in the cellar

outside wall is usually preferred for siting the boiler for simplicity of flueing but not the only option most flues can be extended horizontally/ vertically/ change direction to terminate through an outside wall or through the roof

difficult to be more specific without knowing the layout

surly tuggnuts are a lot nicer imo ( and i'm a fan of most things on-one )

and one on the drive side is all you want

they spent their formative years practicing their chosen sport?

something to be said for a misspent youth

the old trafford roar 😀

yeah my money's still on the sparky TJ – check for a trail of wire cuttings and sawdust leading from the scene 🙂

TJ not sure how sensible that approach is – much better to find a good tradesman that you have confidence in then have enough faith to let him get on with what he knows best – you won't get a good job from anyone if you insist on getting involved or watching like a hawk

Plumbers are notorious for wreaking floors tho ripping up boards.

i think you may be confusing us with electricians

me too

+1 atera strada pricey but excellent and best of all it folds small enough to stick in the boot

[/quote]Joined the Masons

thats nothing i once went all day riding in a pisspot helmet

and dont get me started on the time i tried to board a plane with a haggis in my hand luggage

i'm pretty sure its still available

its kind of important which one goes where- plumbers have been known to get them the wrong way round

as for the leaking radiators most likely just a symptom of a general corrosion problem not the cause of it

what do you mean about 'did the vertical pipes check out as above

the pipe that continues vertically up from the pump should connect to the bottom of your header tank

the other pipe running vertically parallel to it should bend over the top of the tank to vent the system

my two penneth

height to tank sounds fine and clearish water in tank is better than mud
vent should ideally rise >450mm above tank to prevent water surging over as the pump stops and starts which draws in oxygen – not saying this is the cause of your pump failure but its an easy thing to upgrade/eliminate

did the two vertical pipes check out as above?

i would say from the photos and your description that theres not a lot of water in the system above the pump
so you could consider draining it and changing pump and pump valves – tie up the ballvalve -bail out the tank with a tub and a sponge- drain from a lower point just til the pump is dry (or drain into a bucket from the pump head) and replace the lot ( gate type valves)

make sure the leccy is safely off to pump 😯

i'd strip it all out and rebuild the lot 😀

some other ideas
whats the vertical height from pump to tank ?
what vertical height does the vent pipe extend above the tank before it bends back down?
how skanky is the water in the tank?
worth checking carefully for leaks

reason i ask is that doesnt look like a very old pump and in a well installed system grundfos usually last forever so some other factor is knackering your pump and probably will again- edit

the pipe that continues vertically up from the pump should connect to the bottom of your header tank

the other pipe running vertically parallel to it should bend over the top of the tank to vent the system

edit -all that scale and crap not a good sign 😕

he's definitely right its not pump direction thats causing you problems

configuration of feed and vent pipes above pump would be worth checking as would a dry tank

id probably post more if i could type quicker – threads have often moved on while i tap away slowly with one finger

patchy

steel-tick
ss-tick
bright orange-tick
£80- 😯
doesn't exist?-FAIL

The Conservatives aren't perfect

😆

rupert murdoch

freestanding beech top units from habitat have stood the test here theyre really solid no fitting charge just put them where you want / move them around and even take them with you if you move house and the whole lot cost less than a fitted kitchen

+1 hemingway

the road by cormac mccarthy has the same punchy powerful style – good stuff

Oh, and strong Yorkhire Gold tea.

yeah tea never tastes better than straight after beans on toast

heat some olive oil and then add the beans and too much tabasco

steinbecktrackworld?

know wot you mean he's a bit 'precious' but try to look past that for good tv with an important message

you have freinds who are landlords ?

they might be ok on carpet but there could be laminate flooring in there ffs

sorry for the hijack but what tyres for a problem tenant

the ragged trousered philanthropists

the grapes of wrath , cannery row , of mice and men, the pearl ( in fact just about anything by john steinbeck)