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Thanks to all. Since I've just added concentrate and am not losing water I'll leave for the forseeable future. If I need to add water I'll maybe add some more concentrate in a year or so. Regards

Hi I've just added some Fernox Superconcentrate to my pressurised system -I don't know if there was any in the system to start with so now it should be OK. However, when and how do I test the concentration in future? From what I can gather one tube of Fernox should treat 10 rads, we've...

In my old house there was a separate pump on the DHW system that ensured hot water was available as soon as a tap was opened. I've moved house to a recently converted barn. It's been built to a high standard but it's a large house and it takes ages to get any hot water from the taps. Can I...

Thanks to all. I've contacted my local authority re. building control notice.

Grateful for any recommendations as to wood burner makes - I need an 8 - 10kw output stove. The stove is to be installed in a barn conversion where the chimney flue has a pumice? liner. I'm fairly handy so am up for installing it myself but one supplier has intimated that I need a certificate...

I kept squirting WD40 and left overnight and it worked! Thanks for the replies - I like the idea of the plasticene well - will try it next time.

I have a 1934 Austin 10 and need to remove the fuel pump but the brass nuts that connect the lines to the pump are seized up - if I try to undo them the fuel lines starts to twist as well. I guess it could be that some sort of thread sealant was used, although I can't see any evidence of it, or...

Enough, enough - I'll have a new rad fitted!

The micro pipes in the leaking rad go into a single valve but on the inside of the valve there is a pipe that is inserted into, and runs the whole length of the rad. I'm told that modern rads all have valve entries on the rear so it's then not possible to insert the return pipe; so if I...

You are of course correct that a new rad would be less than £100 but unfortunately the system is micro bore with the flow and return going into the same end of the rad but a new rad will not accomodate this so it would mean re-piping as well. The real bummer is that the problem has occurred...

I have a combi boiler system that is normally pressurised to 1 bar and a radiator has suddenly developed a tiny, approx 3/16", hairline crack around a spot weld. The radiator otherwise appears in very good condition with no signs of rust but it is a non standard size that would be inconvenient...

I have a heated towel rail with an imperial size radiator as a middle panel that has got a pinprick hole in it. I do not want to replace the towel rail which is brass and cannot source a replacement radiator so is there anything I can use to seal the hole? Thanks

Another question... I have asked a plumber whether I can install a toilet in a room where there is no easy access to a soil pipe so he has suggested a saniflo type toilet. What are opinions of the plumbing cognoscenti?

Malc Thanks. Looks like the cost saving is very marginal. Regards

We live in a hard water area at the end of a small cul de sac which is on a mains water spur that terminates outside our house. When we first moved in the water company used to flush the mains once a year to clear out any sludge - it was dreadful the first time, really brown, but subsequently it...

Thanks - now totally confused since both options seem logical. 1. Leave it on all the time and the water doesn't get so cold so less power is needed to heat it up OR 2. Put it on a timer and the heater lasts longer and you're not heating water when you don't need it I guess the...

Thanks to several forum members I have successfully? replaced an immesion heater in my daughter's flat. I would now be interested to have opinions as to whether it is more economical to leave the heater on permanently or use a timer? Regards

Kevplumb If it was an expansion pipe and it's now disintegrated will this cause trouble? However, I cleaned out the tank last night and it certainly seemed that the bits were of a solid section i.e. not a hollow tube. Do you think all the bits formed a coil that was connected to the small...

My daughter's flat has a combination cylinder and in the top section there is the remains, in several bits, of what looks to be a heavily calcium encrusted rod or pipe bent into a hoop - it looks as if it was about 12" - 15" in diameter orginally. I've read somewhere about sacrificial...

Nemo & others Thanks for the advice - will try heating up the boss. Still a bit concerned at the loss of the sacrificial anode in the cylinder - will the new immersion heater immediately start to corrode and quickly fail?