scottishjohn

or maybe line them with bits of plastic soffit material --that will be smooth and pretty non stick , AND PLENTY OF VIBRATING TO GET AIR BUBBLES OUT i used an orbital block sander on outside of one i made to vibrate the air out

keep looking for a builder then -- most are just scared of what they have not used before

having just talked someone in biogas --its non starter to get meaningful gas or power that you could sell you need to use organic waste --not trees and to be viable you a need a source of 30,000tons of waste a year was worth a look

so this what i should do with my 200+trees I need to fell !-- and no need for ASHP ?? and maybe not kill the stumps but let the sycamore sprout again looks good ,but very labour intensive for a younger genration i think any new developments on this idea , will hunt biogas generation systems for a laugh

now you sure yuo have to use natural slate or something that has the look of it --there are many products now you could not tell the difference from the ground .but price is totally dif

Iwasn,t having a go at you --juts pointing for others that maybe thought it could be a good idea --that it would not be

no meaningful turbine mounted on the building will ever work correctly due to wind shear/turbulence caused by the building you come back to the basics --no closer than 180m to anything on the ground and 30m above anything with in 200 m. so you can maybe do it --but would be a waste of time thats one of the reasons why over water is a good choice ,its basically flat

still much shorter payback than solar+ don,t see a shortage of water in scotland --maybe sun --but not rain . long way before we there .--but better to plan now for where things would go if i did do it

i remember now 5kw. that was the possible out put for the bottom lake and different turbine--bigger but much less drop again if i sell that bit --iwon,t be doing it

sowmehere i gone wrong with my calcs -- LOL will measure flow rat+ head again r anyway --its long term project ,after i can house built turbine for that is £1200 -- assuming 300 days of runnning --that,s still £2234 pr annum(0.16 elec cost) -so still looks viable ,if using it all ,and winter there will be no shortage of water time and more study will tell

been contemplating hydro -AGAIN somewhat different situation 2lpersec (7200litres pr hour)and 110m head can make 5kwph -thats basically a 4" going to a 2" input turbine at bottom of quarry now the stream/land drain I have -does not flow enough all year round -- so was thinking, as I do 2000ltr tank at top of hill fed by stream - with a syphon pipe --like a toilet cistern - so when level in tank gets up to full it starts the flow and keeps on till its near empty --It fills up again and repeats what have i missed? the vacum created by that drop will certainly pull the water out of tank will be testing actual output soon and throughout next year

flea bay for s/h granite work top ? snooker table slate? hosue i was brought up had this --otherside was the insdie of the coal bunker which just had a wooden door on it --so it got coooled by air from outside

at 2.6 you can fit UFH on top of floors no problem and get good insulation in as well--no need to rip up whats there if its good ,just fit covering of your choice to UFH--for best heat flow insulate under suspended floor if you can -but not imperative if you use pir boards and fit UFH in them then hard type -tiles or something carpet does work --i used to have it but not as good i f you got space then fitting insulated plasterboard to ceiling --stops you heating up the flat above

If there are other users --maybe they will have a delivery on a big artic -- which could damage a lesser cover

If on the public road then you should be using cast iron "heavy duty things - a 40 t load cast iron manhole frame and cover --very exspensive cheap galvanised one will not be fit for purpose in public road - https://www.draindepot.co.uk/600mm-x-450mm-d400-40-tonne-ductile-iron-cover-frame.html

IC then

blue- good straight runs between the inspection chambers there is a maximum distance you should have between rodingpoints /inspection chambers --look it up why not a rodding point/chamber where it the bend is ?

17ft was what the dno told me was safety distance for a 110kplyon line

can you get a mains supply ? you can still be green -think how big a ground solar array you could make with the money for a turbine in winter not enough solar so you if no mains you need a generator if you wanto live in modern syle

not closer than 180m to any wood or anything that can alter air flow and at least 30m above it is what I was told

find a customer of thiers who have had it for 10years and ask for servicing +repair costs over that period--and bear in mind FIT is virtually sod all now if you have water then and it can make 5kw --that will be cheaper and very much more reliable-- 3 -4k is ball park figure for 5kw in hydro

I looked at this with the quarry plot I got where it could be on front face of a big hill bottom line after frank discussion with a man that could supply a one and specialises in off grid systems+services and repairs wind and water turbines etc is that in reality the 40k cost of a proper one installed --not mickey mouse type would take close to 20 years to get back - and the life span of the major components is not much longer than that so it would only make sense if cost of mains supply was very expensive--and my site which will be about 30k --makes going mains the right way - I can still go PV when prices get better and resale of extra energy is worth while and you will still need a battery system to store it to get best use out of it or when wind does not blow and you can expect a very long argument with planning to get one now all i am saying is ask a lot of different people and consider long and hard about it and will the company that makes this turbine still be here in 10years there was a very popular one in scotland that loads of farmers bought --then there were problems with gearboxs --such that the company went broke --cos the peole making the gearboxs -folded as well would I allow a trubine on my ground --yes if it was a rental of land( PPA scheme) --but only if it was a long way off my house

do the maths 2l per sec is 7200 litres an hour -- 7.2 cubic metres -- so how long are they trying to hold it back for

the deciding factor is gong to be the size of outlet pipe from your atenuation tank and the head --how deep the tank is -that will decide how much water + how fast the water can exit the tank sure someone on here will have the formulae for working that out ,once you know how much water you are expecting to control from your surface /roof drainage

mines on the garage roof --i get a small noise inside garage resonating through the roof beams -- but not loud by any means i could have put it at north side of house ,but as that can stayfrosted all day long in winter -- It has to be lower air temp --on roof gets sunshine all day