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BCO turned up this morning, no problem with moving soil stack and wasn't even interested in waste lengths etc. :lol: Good news all round really because I am having 5.5m of folding sliding doors fitted and didn't want to have ugly trickle vents fitted (they also cost an extra £300). There is...

I've now found this information that states that there is no max. for shower and bath waste lenghts. All too confusing really. I'll let the BCO decide. http://www.mcalpineplumbing.com/wastetrapsandpipes.asp#pipe

sooey, is an air admittance valve the same as anti vac trap. If so would it be possible to simply replace the shower trap with an anti vac trap. It does say in the regs that if the lengths mentiond are exceeded a air admittance valve should be used or a ventilated branch system as per swidders...

Yes it seems I was getting confused between a ventilated stack and a ventilated branch system. So it looks like not having a fall of 1:40 is the least of my problems. I am going to have issues of the shower waste pipe being too long if I move the soil stack.

Thats what I've read in the regs but it seems those figures are for a non ventilated stack. It mentions a branch ventilation pipe or air admittance valve should be used if these distances are exceeded but doesn't give any max. distances for a ventilated system.

I was, thats the issue the builders picked up. However, I was reading the building regs for drainage and it kept mentioning max. waste lenghts. My shower waste pipe is going to be a total of approx 8m from the trap to the the proposed new position of the soil stack. I'm just hoping this isn't...

looking at the buidling regs I can't find any mention of max waste length into a ventilated soil stack only for unventilated soil stacks. I take it a normal outside soil stack is ventilated or am I missing something. (Don't say brain, I already know that !!)

Hi, I am having my soil stack moved as part of an extension. The builders have noticed that the shower waste will not have the min 1 in 40 slope if the waste is routed through the roof void as planned. They have suggested dropping the waste into the extension and boxing it in, either that or...

Hi, Thanks for the replies. It was actually the structural engineer from Building control that has put the restriction on. My plans were passed but with conditions, and that was the formation of the additional openings did not provide enougth lateral support (buttressing). The length of the...

Hi, Thanks for the reply but after a bit more research and talking to a structural engineer it seems the max. opening you can have in an external wall that provides buttressing to the side walls is 2/3rds the total length of the wall in which you are creating the opening. This is to provide...

Hi, Does anyone know the max. opening that is allowed in an external wall. i.e I plan to knock through my kitchen and dining room and build an extension onto the rear. I want get an idea of how much of the existing walls can be removed. I think there is some form of rule as to the maximum...

Thanks for the reply RigidRaider, unfortunatley I live in Kent so quite a long way from you. I've just received a quote today from Solarlux and they were the most expensive of all the quotes I have received at over £10k for a 5577mm opening for just the doors including fitting. I'm torn...

Hi, Can anyone who has had these types of doors installed recommend any particular suppliers. I've checked out Sunflex, Solarlux, Smart system Visofold, and foldingslidingdoor company. The problem is I haven't actually seen any of the doors in action because the showrooms are a few hundred...

Its quite normal and I get it quite often on my double glazed windows. It means your windows are thermally efficient, therefore the outer pain is cold and in certain conditions the pain is colder than the dew point of the outsid air and water condenses on it, misting it up on the outside. With...

walls been up for about 20 years so I suppose it would have fallen down by now if it was going to. The main problem with it is that alot of the pointing mortar has fallen out and the bricks on the top are completely loose.

Thanks Woody, just gooeld Stack Bond and yes that is how the wall is built. Apparently there should be some form of steel support within the course. Not sure if I have this, as most of the mortar is falling out of the wall it shouldn't be too difficult to check. My only concern is the wall...

Hi, I have a couple of retaining walls in my garden about 4ft high. Instead of being built like normal brickwork they seem to have been built in a pillar type fasion. i.e the bricks do not interleave. Is there any particular reason for this!!

The house is built on a slope that has been tiered, there are retaining walls between myself and neighbours houses. One house 10ft higher than mine the other 10ft lower. Not sure if thats why we have beam and block. I hope I don't have to overly deep foundations for the exetension, the builder...

Hi, I've had a couple of quotes fro an extension and both came in very similar. The only difference being one builder was going to use a block and beam floor and the other a solid concrete floor. The floor to the rest of the property is block and beam. Are they any advantages/disadvantages...