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Firstly, thanks for answering. It seems that the door frame needs to be fixed to a beam as a cavity lintel isn't rigid enough. I would much rather use a cavity wall lintel obviously. the wall is standard 9 inch concrete block, 100mm. what do you reckon? thanks.

I'm putting a set of 8ft bifold doors in a single story building with cavity walls. i intend to use a 178 x 102 Universal beam over the doors themselves. Is there an alternative lintel I can use over the opening in the inner leaf of the cavity or should i use another U/B the same. Any advice...

Thanks for the quick reply Noseall, I appreciate it. I'll get back to the pool people.

i'm involved in building a below ground swimming pool. The drawings show a concrete slab over 100mm Jabfloor and 1.2mtre walls of 225mm flat laid concrete blocks built off the slab My question is if it's OK to do this with the jab under the wall, will it support the weight? Any answers please?

Tee Hee. Thanks chaps.

Can someone tell me if there is a difference in spec between Jablite and Jabfloor please. If so, what is it? Thanks in anticipation.

my daughter has just bought a 3 bed bungalow with 8mm microbore central heating:(. its got a big conservatory thats like an ice box is there any way of fitting a couple of good sized rads just by extending the existing system? any help apreciated as Im visiting them at the weekend and would like...

My architect has drawn plans for a garage with one wall about 2 feet from a big pine tree. Seems a bit close to me, who has the final say on how deep the footings have to be and how close to the tree? The BCO or a structural engineer? Thanks in advance for any advice.

Thanks for your answers. The 100 watt is the blower that keeps the little plastic balls moving, for the bacteria to grow on. I just thought a 13 amp socket might be a handy thing to have nearby, maybe for some tool during maintenance, a lead lamp?

I'm not doing it myself, I'm ringing my sparky today. I just wanted to get a bit of knowledge 8)

I need to run approx. 50 metres of armoured cable to a domestic sewage treatment plant using 100 watts. I also want a 13 amp socket by the plant. Is 2.5 twin and earth big enough for the job please? Thanks in advance.

I had a kingspan unvented hw cylinder fitted 18 months ago. Just checked the pressure vessel and it isn't pressurised at all (no gauge fitted). The pressure at the shower and all taps is good so is it ok to leave it as it is or must it be pressurised? The paperwork left by the plumber says 3 psi...

can anyone reccommend a lock to fit old metal windows. They are similar to Crittal but older with cockspur handles spur. A shoot bolt type would be ideal but the actual "spur" is only about 6mm thick not the normal double forked type.

Thanks Matt. Thats what i was hoping to see :D

I never implied that the installer was wrong. I need to drain the cylinder and dont know what to expect when it is refilled. Does the pressure build automatically? Does the expansion tank have a pre-charged sealed pressure? The only similar thing I have had was an Oso where you had to adjust the...

Ive just had a new unvented KINGSPAN hot water cylinder fitted by a heating engineer. It has a separate expansion vessel. There is no pressure guage, is this correct? How do I know if the pressure is right etc? Any answers please before I get him back! :(

Thought about a boss on the downleg but I thought an extra inlet would have be on the top to prevent stuff going in the wrong hole :?

Is it possible to buy a swan neck toilet pan conector with a 32mm adaptor on top for a waste? I can only find rt angle ones but realy need the space. Any help apreciated, thanks.

Thanks chaps, youve persuaded me! I'm gonna fit spotlight instead :)

yes I am paying a registered electrician. I just wondered as he just asumed thats what we would be fitting and now wont be back til thesecond fix. Thanks for the sensible answers.