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cross

A cross is a geometrical figure consisting of two intersecting lines or bars, usually perpendicular to each other. The lines usually run vertically and horizontally. A cross of oblique lines, in the shape of the Latin letter X, is termed a saltire in heraldic terminology.
The cross in its various shapes and forms was a symbol of various beliefs. In pre-Christian times it was a pagan religious symbol throughout Europe and western Asia. In ancient times, the effigy of a man hanging on a cross was set up in the fields to protect the crops. The cross was even considered a male symbol of the phallic Tree of Life; thus it often appeared in conjunction with the female-genital circle or oval, to signify the sacred marriage, as in Egyptian amulet Nefer with male cross and female orb, considered as an amulet of blessedness, a charm of sexual harmony.

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  1. M

    Cross bonding cutting gas/water pipes

    I know no one really does. But technically why should we use bonding clamps when we cut a section of gas or water pipes out? Thanks.
  2. N

    Grundfos Alpha v UPS sorry cross post

    Hello, I have just had my 15year old Grundfos UPS 15 50 replaced with an Alpha 1 and the Alpha 1 seems quite a bit noisier than the the old one, I have a new UPS3 sitting in a box and I am thinking of changing the Alpha 1 for the UPS3 if I understand it correctly, Alpha1 v UPS3 1. Alpha 1 is...
  3. B

    cross over or not advice?

    Hi everyone, How do you know if there is a cross over with the pluming system in flat? All pipe work under sink, bathroom etc in the flat itself are legit but the rising main is in the attic, there is one rising main pipe (22mm) which has two pipes teed onto it that deliver water to three...
  4. T

    Distance between cold pipe cross over hot

    Hello I need to cross over an existing copper hot water pipe with a cold 15mm mains copper pipe. Is there a standard I need to adhere to in terms of clearance?
  5. B

    Soil pipe cross flow between sink and shower

    Attached is a ground floor picture of the soil pipe in our home. There was originally a toilet which has now been permanently capped off and you can also see a sink waste pipe attached. My plan is to drill out one of the 50mm sockets directly opposite the current sink waste for a new 40mm...
  6. S

    nylon cartridge nut cross threaded in brass valve body

    The inside brass threads in my Moen rough in two handle Roman tub valve (Moen | Bathroom & Kitchen Faucets, Shower Heads, Accessories & More - https://www.moen.com/products/M-Pact/M-Pact-Two-Handle-Roman-Tub-Valve-10-Center-1-2-CC-Connection/4796) were cross threaded with the nylon cartridge...
  7. I

    Can I place a cross T fitting for a gas line?

    Can I install cross t fitting ( 4 way) close to gas meter at the “line to the house” before it enters to the house
  8. B

    Can you help determine how to remove old shower valve, cross handle, no screws?

    Hello. I have an old shower valve that needs replacing. No product name, or set screw. It's got a cross handle with a diverter above the handle. My plumber thought it was similar to an American Standard T0646002.002 (except cross handle not a bar) but the insides are not the same. This was in...
  9. Milan5baros

    HELP - Back to back WC's issue with cross flow

    Morning all, Struggling to resolve a problem. Back to back WC's in a fourth floor flat and the waste from toilet A(main bathroom) transfers into toilet B (ensuite) we have installed the McAlpine ARB 1 anti-cross flow valve on each side but it has only stopped solids and there is still some...
    • Milan5baros
    • Thread
    • america cross flow help issue usa
    • Replies: 7
    • Forum: USA
  10. D

    To cross bond or not?

    I've had a new boiler installed in one of my buy to lets and the tenant called up after a few months to say they were getting a slight shock through an adjacent tap. My electrician said that this was due to the boiler not being earthed/cross bonded. The guy who installed the boiler said this...
  11. J

    Bleeding radiators! No I'm not cross. Ha

    I you bleed one downstairs radiator, does it drain water from the rads above? Do you then have to bleed the others?
  12. T

    Cross head tap removal....

    afternoon all, anyone come across these taps? Need to change a cartridge and can’t work out how heads come off! Tried the obvious pulling etc, on a Belfast sink so can’t get to the back to fit new taps..... Cheers all
  13. C

    Copper cross 15mm for light project

    Can anybody tell me where I can buy 15mm copper equal crosses.having great problems finding them on uk web sites or retailers. Thanks Chris
  14. M

    Availability of end feed cross fitting

    Hi All, First post but I've been reading a few threads on here and love the honest, and sometimes much needed, blunt advice. I hope you can advise... First off I'm not a plumber (I know, I know) but need to reroute some existing copper water pipes (currently a mixture of 15mm cold and a short...
  15. M

    cross over bends

    Do people see the pre made cross over fittings as acceptable to use?
  16. U

    Boiler switching off - cross leak??

    Since October last year we have had a problem where the boiler goes to red light (turns off) whilst trying to heat the house. The problem was very intermittent from once a week to now at least once a day if not more. It also seems to go to red light when running the taps, for example whilst...
  17. M

    Toilet service valve leaking not cross threaded

    Hi I have a toilet service valve that is leaking as it tightens on to the toilet fill valve. It is not cross threaded hand tightens with ease a good few turns, I have tired replacing the fiber washer to no luck. I have also tried ptfe with no luck. Any idea what could be happening, as I said it...
  18. U

    Cross thread on shower mixer

    I had a leak from the hot water input to my shower mixer, I tightened it but it got worse. When I stopped the water and removed the mixer I could see that the thread on the bit coming out of the wall was crossed, tape hasn't worked, any ideas what I could do without having to know tiles off the...
  19. S

    Hot cold cross over

    Hi I recently installed a new mixer tap, after a few days i could hear water running and my hot water was cold so i investigated and found the cold was leaking through the tap into my hot line. I know i can fit a non return in line but should i be doing this? Surely the tap is faulty and not...
  20. J

    commercial cross over

    I'm thinking of doing the crossover to commercial, has anyone done this? Is it worth it ect...
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