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    Best way to join 2 cold water tanks??

    Mostly with the others, but if you do decide to do it. there are two ways. First is to join the two tanks with short lengths of pipe and tank connectors, as wide as you can cheaply get fittings for. The downside of this is that a leak in one will drain both and that the fittings sometimes...
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    pc problem

    Changing a motherboard, unless it's a direct swap, will require a reinstall of Windows. It's trying to use low level drivers for the wrong chipset, and unlike mac and linux, windows has always handled this ungracefully. Same thing when trying to transfer a hard drive with windows to another...
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    Should I buy a working platform?

    Trades will prefer to rent in scaff, even small stuff like this because: 1. You're paying. 2. Regular (sometimes weekly) Scaffold inspections (a HSE requirement) are done by the hirer. They don't need to train or pay for this. 3. Flexibility. Scaff or hire company will be able to...
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    Hardcore for retaining wall

    Not enough info. What you describe is fine for a small retaining wall, but a hand-tamper is not going to be able to consolidate well enough for a sizeable retaining wall.
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    Going rate for a project manager

    5% sounds close to the going rate. Anyone significantly cheaper might be tempted to skim the trades - the opportunities for a dodgy PM are numerous. This is one thing I wouldn't skimp on - a good PM will be worth their weight in gold. They'll get the best contractors in, manage all the little...
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    mower running rough when hot

    Further to the above (the air admittance valve/hole is a good start) Ensure engine block clean from all grass cuttings, as well as any air vent holes (so air gets blown over it). Check the fuel. Been standing for a while? Check the plug. Should be a light biscuit colour. If white, too...
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    Certification. How long?

    Depends on how well office-disciplined the sparky is. I've had some within the same week, on others I've had to chase and it took up about six months. My current one does his certs once a week or so, depending on load.
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    Humax freesat and dish install

    Worked first time for me! I printed out loads of stuff on those at-finder sites, including a map of the direction and a distant landmark to aim at. The angle was very flat and I thought I'd done it wrong since it was just peeking over the horizon (Devon), but 100%/100% when I went back in to...
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    A self steering Corsa!

    Is there any way to disable the EPS entirely and revert to manual? (Certainly with PAS this was considered essential in case of failure - but not the case with fully hydraulic PS found on plant and agricultural machinery; but speeds on those are reduced)
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    Pump for hot water

    If it's a conventional hot water cylinder, sure, you can fit a pump to it. But 8mm laid to supply a bath? You need a new plumber, mate. 22mm for baths.
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    CCTV installation to prove my innocence

    Agree re audio, that's a bad path to go down. Read the CCTV Code of Practice, it has things to say on the subject. Also, Audio is very easily faked and useless as any evidence you may think it would be good for. And yeah, if you're innocent, ignore it or talk to the police about harrassment.
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    2 rads working heating not on

    3-port valve sticking and letting a little through to the heating circuit instead of just to the hot water tank?
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    Reasonable % for contractor to add for materials etc

    Not about being clever, about ensuring best value. Before I took over managing contractors, my employers were being significantly ripped off by more than one contractor. Why should the contractor be able to give one price to the customer, but get another price from the retailer and tell him...
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    One Pipe System?

    That is a beaut. Get a marker pen, turn on the heating and find out what gets hot first to establish which side(s) is feed, which return.
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    Reasonable % for contractor to add for materials etc

    And also they'll use your time to source and replace. This is why 60% discounts exist with Jewsons et al. It *IS* a con and it's designed to keep the customer in the dark. Non-transparent business practices ALWAYS result in somebody getting ripped off. Establish rules on materials...
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    How safe are Active X, or Flash games on the web?

    Unlikely, and flash is not designed to allow access to your files even if the coder wanted to. What is possible, and I'm fairly sure it was the way I got a virus last week (either that or an unpatched Firefox) - certainly on a driveby somehow - is flash embedded on websites exploiting flaws...
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    Fitting a door in what seems to be a plaster wall

    A solid plaster wall wouldn't even support itself, so it must have a rigid inernal. Whether that's timber, brick., concrete or other type of block it doesn't sound like you know. But if it is a supporting wall, you DO need to be careful, but methodoligy will need to know what the wall is...
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    BT cancelled my e-mail account for not paying the bill.

    Probably not the most sympathetic reply you've had, but: You've had a free email account for 20 years, which was supported for some time after the original company was bought out - and you're complaining? I do get that it's inconvenient, and not being warned /is/ a bit pants (Are you sure...
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    Water Tap Fitting for MDPE pipework

    Nowt wrong with a bodge if it does the job!
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    building a new PC

    There's a lot of motherboards, even micro ones, out now that specify they are capable of 1080p video with the onboard gpu, as well as 7.1 audio, even hdmi out. As for matching memory, cpu. Start with the board. Read it's specs - it will say what memory it needs. DDR2 or DDR3 now, how many...
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