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Last kitchen taps I installed (my own) had a good 60-80mm of thread which was hard work to wind the backnuts over with very limited access. Bahco is right though if you want to keep the taps that you have you will need to counterbore the underside of your worktop - However, the taps need to...

Bahco - why would there be condensation on a hot surface? For chilled water vessels it's a different matter! The main reasons for putting timbers below a cylinder are to spread the load over at least two floor joists and to give a bit more room for using the drain cock or getting a spanner on...

Amanda, That Earlex machine recommended by MMJ looks great value. The Clarke ones are no heavier than the equivalent Numatic - they do quite a large range. I don't have one of these myself, although I have used them on site quite often, so I can't vouch for the durability of the...

Any machine designed for use with a bag should never be used without it - the motor will be damaged very quickly. Numatic machines are fine but a bit over priced in my opinion. The Clarke range from Machine Mart seem to survive building site conditions fairly well which must be some...

TexMex is right, R11 CFC is banned even for servicing, although I think selling a second hand unit privately wouln't cause a problem. I don't think that your engineer can regas your system legally, hence the high price. Your fridge must have been made at least 12 years ago, go on, treat...

Just a thought....Does the Clean Air Act come into this, I'm not sure how it applies to small boilers but for larger stuff we use a nomogram to determine the minimum height required to disperse fumes. There is a different version for heavy oil, light oil, coal, gas etc. based on sulphur content...

Only thing I can suggest is that if you put a radiator into your conservatory it becomes a 'habitable room' and therefore the construction of the building needs to comply with the Building Regulations. So... after you have had your final visit from Building Control you can go to your local BSS...

I specifically prohibit pneumatic testing in the specifications that I write - I allow a 10 psi above atmospheric for bubble test but all other pressure testing must be hydraulic. There is an HSE guidance note (GN4, I think) for pressure testing which includes such things as building sandbag...

10 bar! Wow! New radiators are only tested at works to 7 bar, except Thermalrads if they are still made, which were finned tube in ventilated box and were tested to 15 bar or more. Test pressures are normally 1.5 times the maximum working pressure. Don't pressure test anything in my house...

Yes, you are right - Conex are made by IBP who also make Delcop end feed fittings and Cuprofit pressfits. Yorkshire are part of the IMI Group and make every type of copper, brass, bronze and cupro-nickel fitting you could think of and Prestex is a Pegler trade name.

Ah yes, that should be 2.04" (these numbers are very close together and I've got big clumsy fingers). Conex are the Yorkshire fittings with ridges on the compression nuts so I guess the Conex spanner is a crescent rigidly attached to the handle and a pivoted hook? I'm not sure that I've ever...

Chris R, My old 'copper' catalogues are at home so I will check later but the trusty Mucklow book gives 1.04" or 51mm for a 1 1/2" hexagon bush. Am I right in thinking that pump unions are octagonal rather than hexagons and that you are supposed to use odd-legs or pump pliers to undo them...

Here's the facts about 1/2" and 15mm tube: 1/2" tube was to BS 659 and a maximum o/d was specified as 0.596" or 15.14mm, no minimum was listed but a wall thickness range was quoted - I don't have that stuff to hand. 15mm tube is to BS 2871 and has an o/d of 14.965 (minimum) to 15.045...

Breezer, I would prefer a tumble dryer but the combined machine is the only practical solution - we need to dry cotton nappies every day and don't have the space for a separate dryer, in fact a sensible route for an exhaust would be impossible, unless you can get condensing tumblers. I must...

Thanks Breezer, that all sounds like sensible design to me - I guess the intention is that the condenser reduces the moisture content of the recycled air by dewpoint contact without losing too much temperature. I often wondered why there was no significant air discharge during the drying - I...

Well done for sorting your machine out sounds like a case of persistence paying off. I have a similar problem with a Servis Caress 900 washer dryer - sometimes it will dry, sometimes not. I have worked on a number of washing machines before but not a washer-dryer. I'll be extending my...

I've checked at home and only have more petroleum, confined space, medical gas and airfield permits to work, the format for all of them is similar and could be re-written as a hot works. As you say, complicated isn't what you need but you're welcome to one of these if you want. You could remove...

Mr. Dragon - I've found a permit to work but it is a 'Petroleum' rather than a 'Hot Works' and is an MoD document so is much more complicated than it needs to be. I could email it but have no idea how to obtain your email address from here.

I may have one at home if you can wait until Monday. Alternatively you can make up your own. The idea is that the form assigns responsibility for safety to a 'responsible person' who has to be a named individual rather than a company. The form is normally issued by or on behalf of the owner or...

Could it be a form of internal overflow? I fitted a new syphon recently that had a couple of rubber bungs near the top bend with instructions to remove for internal overflow. 'Great' I thought - I can remove the pesky overflow pipework that gets in the way of the stopcock. However the flush...