saveasteading

That can go down as a light use sub- base or concrete fill.

That is a different level of pump power I expect so will be louder. It's a newish development and one I've never needed, but will make lots of sites viable.... and reduce trench depths a lot. The air bubbles one though, surely isn't loud?

Yes looks porous.

Don't rip out a historic hedge without permission. These are the way to mark blatantly, and let anyone with an issue see them. Then take pictures. Then replace with chestnut posts for posterity.

That had not occurred to me. On a posh lawn anyway. I think I would hide it under a nymph statue or some such. Our one isn't loud at all. Silent at a few metres. I guess it could be muffled if necessary. My guess is that one was designed with a pump chamber in it, and it wouldn't fit in the other.

By its nature, crushed rock is more random in shape and will have more air gaps. Gravel has been rounded by nature and may consolidate more. I cannot remember if that is allowed for in the grading specification. But, I also know from experience that the same crushed stone will abrade under repeated loading and so become denser and less permeable. So a slight slope is still worth considering.

Do you have any exposed stone? Try to scratch it, then try harder . Granite will remain ummarked. Limestone and sandstone are variable. People near you may know what the local stone is. Yours will not have travelled far.

And we have learnt to watch out for this risk. Thanks for the contribution. Next time would you stress to the BM that you must have a proper mix?

@SteveG40 Interesting and thanks for reporting. Who specified it? Do you still have any leaflets from back the I'm cautious about any of their products. Very skilfully written blurbs with few real life test results. I went to a tech presentation at the local bco, of this honeycomb stuff and was immediately surprised and impressed with the concept. Interestingly though they wouldn't take questions and comments about the other products. In my opinion they did not target the industry with the multifoil stuff, only homeowners. The same later became the case with honeycomb. And it's expensive. I have never seen them at construction exhibitions but have at self builder ones. 20mm gap seems still to be specified. Complain to them by email. Upset not angry, and asking for a solution. Tell them you want their comments before taking advice from the industry. BTW . IMHO multifoils or bubblewrap may have their place to line sheds or attics. The honeycomb idea is good but it shouldn't fall apart. If anyone has positive comments I'd love to hear.

Is there a good reason why the Graf pump isn't within the tank? It's just an air pump like in an aquarium. We used a Marsh and it just needed an electric feed. Seems less hassle at end of pump life too.

Are you sure it isn't type 3? I've seldom used it, but know it isnt 'single size' and does have small aggregate in it. The supplier can adjust the mix within gradings to suit what they have. I've recently been surprised by the look of a ballast delivery... it seemed not to half much middle-sized stone.

Apart from this specific case. It's a good idea to record the boundaries with any clear feature, pegs or posts, and take photos. File the pictures away and after a period of time they become definitive in law.

By coincidence or this discussion is being watched: Next day, I got a Facebook ad from a local plant hire chain, selling machines off at 3 to 7 years. Full maintenance schedule, and hours were lower than I had expected. About half the new price and will be good for diy (ie careful) use. A lot of money still.

The only "dodge" would be if one of your contractors included it. But they'd probably charge you some other way, and liability for any design errors would be complex. Digging a hole is probably doable, but you've got more important matters to concentrate on.

People can get very touchy about boundaries. I think it is a territorial instinct. But if it ever got legal you only have to have made "reasonable efforts".

What is the problem? Is it breaking up?

Yes they have the power. Who designed this? Would you swear that it is a watercourse? Would something horrible happen if a similar drought recurred and it was your outlet? Would a drainage field be feasible? I repeat my point. Talk to the designer. If that is non-productive then talk to the bco.... watercourse or drainage field?

You've engaged professionals for your design. Get their decision on the resolution to this. If you're happy with it, get it in writing and carry on. Assuming they have proper PI insurance (you should already have details of it) then they are liable.

The bco is not an utter expert on the subject and won't have the qualifications or insurance for this decision. So will probably wants a piece of paper for the files. Unless it's obviously OK. Ask them in casual manner .... is there anything you need more detail on?

Rain the day after is a good thing. I'm still gobsmacked. 250mm of slab with 2 layers of reinforcement! I'm trying to think where I've done that other than upper floors with big clear spans. Is that what some kit system requires?

Impressive but may I suggest that is not a normal house? 1. I've built factories to 10m racking and 5t forklifts that are very much lighter construction. 2.What was the plan if it was wet or windy?

Which do you prefer? Which one would give way? I've worked with both. Personally... as a business I much preferred to start a job at risk. The English way.Building notice. My risk. But I think lots of errors and costs occur this way, and the bco doesn't see them all. The Scottish method ensures better quality and integrated design. Then to water. Scottish water is generally much better quality so why reduce this standard? Why would the English system improve standards? The system likes it as is. Agriculture/ development. * It would cost a lot to improve policing by returning investment and control to the E A etc. * I would prefer much higher standards on new development and them to pay for sewage treatment works improvement. Zero rain to leave the site.

The waste companies can do rather well out of mixed skips. I've been to one where they tip the contents under cover and sort it. 30% air is a bonus. At the end they have it all sorted for mostly reuse. 10% then goes for burying or burning. Figures very approximate. @nod. Ever had the skip driver complain you had packed it too heavy? Good job say I.

When it is expensive to remove, then reuse or different methods will be thought about.

NB. If that was 150mm thick, then the concrete itself will cost 60m3 x £120. £7K ish. So the 4k is obv for labour. Did it include all the kit? What else was extra? Did they cut contraction joints next day? Remember that if it rains you have a problem.