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anyone tried these Bosch multipurpose bits before? http://www.screwfix.com/prods/70820/Drill-Bits/Masonry-Drill-Bits/Multi-Purpose-Drill-Bits/Bosch-Multipurpose-Drill-Bit-4-x-75mm# Do they work? Or are they bad at all jobs. -Neil

Didn't mean to sound flippant Johnboy. What I should have explained was that I remember my worktops in the chemistry lab were very battered. Most had 'compass engravings' in them that would have gone straight through any surfacing that was applied to the wood. All sorts of chemicals would have...

I wouldn't prepare food on anything described as being "discarded worktops from a school chemistry classroom" -Neil

You can get Total stations that are suitable for one man use. Wild make a robotic total station that has motors in the scope which follow the person with the target. The keypad and screen unclipped from the station and clipped onto the target staff. However when I saw them (7 years ago) it was...

With the greatest respect. That looks like a structure that will probably need some sort of planning or building regs approval. This needs to be designed not just put in by a couple of diy'ers. It may be that the company supplying the system offer a free design service for their product...

Connect it up to the cold water rising main (high pressure) not the cold water storage tank outlet. Also an electric shower draws a high current from the mains so needs it's own dedicated supply from the main consumer unit. All the usuall warnings about part p should apply sinse it'll be...

If there is no fall or even worst a back fall from WC2 to WC1 then you need to lift wc1 up to ensure nothing flows the wrong way. Does WC2 join in with a straight 'T' piece or does it have a curve to it to start the water flowing in the right direction? -Neil

Thanks for your replies. It's only one bang on first startup but it's difficult to pinpoint because it travels through all the pipes and sounds loud everywhere! The CH and HW works fine it's a Potterton boiler by the way, about 20 years old but seems to work ok! The valve has a blue plastic...

We've recently moved into a new house, sometimes when the heating switches on there is an almighty bang from the pipes it sounds like someone has just whacked the pipes with a large hammer! I think it's loudest from the airing cupboard which contains the CH pump, 3port valve, timer and HW...

You could try one of those tape sealants that polycell do. It comes on a roll but it has it's own problems if you are trying to seal to tiles where the grout isn't flush with the surface of the tiles. -Neil

The only time 'Officials' will want it uncovered is if the access is required for public health reasons i.e. if it was a foul water cover. Or just maybe it might be a public storm water sewer rodding eye but it is highly unlikely. If this one takes rain water only you should be fine especially...

You're right foul sewerage has a fairly narrow band of acceptable flow rate. Too fast and the fluids run away too quickly, too slow and it just blocks up. I know that the self cleansing velocity for storm water drainage is 0.75 meters per second which is where the 1:200 fall comes from. EDIT...

You've hit the nail on the head. It's always going to be a guess untill you've had somone around to quantify the risk more than you get from a standard surveyors report. Personally I would not be willing to put what amounts to a huge amount of money on the line without trying to assess further...

But why then did none of the other rooms in the same house not show any high readings? -Neil

The building surveyor read high readings throught the utility and kitchen area. Without further professional investigation you are buying a house blind after being told it has damp. The damp was traced to a bridged DPC outside, however once the temperatures were taken into account we were able...

>>> If he takes hygrometer and temperature readings then he is doing well. <<< That could be important because one of the things our damp 'expert' said was that the readings he was taking were not as bad as the numbers were showing because the temperatures were also low (4 degrees C, the...

The HSE website has lots of reliable information about asbestos. This page lists different tasks and how you should go about performing them in order to protect yourself. http://www.hse.gov.uk/asbestos/essentials/index.htm EDIT: Of course these are written with the construction worker in...

I thought most PIRs that control lighting used relays anyway or do they now use Triacs? -Neil

Plan C sounds the best to me usefull storage and if it all goes horribly wrong or you change your mind it's easier to return to how it was before. -Neil

I have to stand up for some of the better damp specalists out there. We just bought a new house and the surveyor threw up "High damp readings" in the utility room with their damp meter. We bought in a 'specalist' to see if it was going to be a problem for us. The guy that did the survey...