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well, that's my question (wasn't that clear?) - a tee is required before the boiler - still, I've read something which suggest otherwise...(if I find the source I'll post a link in here...)

I'm aware a good flow is a good start to ensure a good supply to combi condensing boilers, and therefore a 22mm pipe is recommended...then, I've heard that a direct connection from the stopcock without tees would ensure the maximum flow available....but without tees?! So one is supposed to feed...

When you are cramped underneath the crawling space of a suspended floor you'd better keep digging to a minimum....a real pain in the axx (and back). I'd rather use a pump to suck the water out - if there are lower levels within a suitable range.

As I've mentioned already....there's no point trying to cutting corners - the sand might not be necessary but if the inspector doesn't see it he would find excuses - they do - this is my experience with UU... Anyone has any view about the standing water inside the trench? As I don't see...

thanks a lot of the useful tips.... Just a point: I don't have to dig under the pavement - United Utilities is going to do that for me - and the new water mains are located about 16m from my property (you don't want to do that).

[/url] no, it doesn't (I have that anyhow). You aren't supposed to dig under the public area (e.g. a pavement)....the graph shows this long pipe going from your home to the public area (how do interpret that?). Then, how would you seal the end of the duct? Would you keep the pipe inside...

Not true....there are certain requirements and it's better to comply to them as much as possible. Then, in my experience - certain water companies (don't forget these are private ones) aren't that keen on certain jobs and would find excuses to delay/avoid them....of course they are obliged by...

I'm digging a trench for laying a duct for a new pipe connection (and get rid of old lead pipes). The trench is about 1m deep - I'm about to complete the job which involve laying some sand on the bottom of the trench to accommodate the 100mm duct with a 25mm pipe inside the same duct. Problem...

I loaded some GIF files in some folders with some music files (mostly MP3) - now Jet Audio (on android phone) shows one particular GIF file as a default image anytime I open or listen to an audio file which isn't associated with any specific art graphic....still, after searching in the many...

Ok, that 90mm/metre can really help my case....this because the waste from the basin is linked to the soil stack - and it's going to be less than 3 metres. Maybe there is no need to lower the basin trap (the lower the more difficult to keep it out of sight too)...

40mm is referred to the diameter of the waste pipe for basin/sink.....I've never referred to it as a "line"...then it seems the actual diameter is 42mm. Bottom line is: can we control the "fall" by adjusting the height of the trap? It seems a simple question - but it appears you are...

if you check the link to that other discussion then it seems the matter IS relevant... "The minimum fall for a 42mm pipe is 18mm per m. Maximum, 44mm per m. There are good reasons for these maxima and minima, to avoid blockages. If the fall's too small, the flow's too slow to keep the pipe...

As you can see in this discussion the term "fall" indicates the "gradient" of the waste pipe...(do you know a better term? pls let me know). http://www.ultimatehandyman.co.uk/forum1/minimum-fall-in-40mm-waste-basin-t25868.html

I'm aware the maximum fall for a 40mm waste basin pipe is 44mm/m... in my specific case I would need a steeper fall (maybe 80mm/m)...can I "cheat" the issue by installing the trap a bit lower? This picture might give an idea...

[/url] that's a fast reply! thanks a lot....it starts to make sense - Wickes should had linked these accessories to their chrome traps...

here's a link to the trap waste in question: http://www.ebay.co.uk/itm/Chrome-Plated-Traditional-Chrome-Basin-Waste-Bottle-Trap-Chrome-Pipe-ZARA-71-/251380545580?pt=UK_Home_Garden_Bathroom_Taps_PP&hash=item3a8772b82c

I'm about to install a basin in a bathroom - the basin (bought second hand) comes complete with a chrome bottle trap and a 30cm long chrome pipe attached to it (waste pipe) no thread at the end of it...I've measured the outer diameter of this chrome pipe (about 35mm) and it doesn't fit any...

Outside there is a public pavement....I dug below it from my property and leave a mark on the top of where United Utilities is supposed to dig - that area is their responsibility not mine. I'm puzzled myself about the possibility of not having foundations...but if I'm not mistaken that's...

"Dug under the wall foundation..." do you remember how deep? I'm also with United Utilities and they require a minimum depth of 750mm below the outside ground (not inside). Being a suspended floor is much easier than with a solid concrete floor but I have no idea where to find the foundations...

thanks for your feedback... The 750mm depth isn't a major issue as the crawl space is relatively deep - basically I'll have to dig another 200mm to achieve the minimum (750mm below the ground outside the house)....but what about the actual perimeter of the house? I'm going to find...