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jamieled last won the day on January 28 2019

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  1. @AndrewR, the guidance is different for inland watercourses and coastal areas. SEPA seem to be content that you can discharge directly from a septic tank into a coastal water, provided there are no particular sensitivities. This is due to the dilution you will get. They do state a partial soakaway is optional, but not mandatory. I'm aware of plenty west coast dwellings (including some new ones) that work on that basis. If the other dwellings using the system have been there a while, they may not have registered with SEPA. You won't be able to escape that, so if it were me I'd ask them now how you go about dealing with an unregistered communal system. There is a sepa registry email address on their website. See here for a bit more info: https://www.sepa.org.uk/media/152675/wat_rm_03.pdf&ved=2ahUKEwjJpKbPm_fqAhVGSRUIHYUvAl4QFjABegQIAxAB&usg=AOvVaw2KBUuxUIv_ldNUHcAJoONZ
  2. @Andrew, no there isn't anything, only some insect mesh. I'd say if I were doing it again I might try and make those bits circled a bit neater. We have reasonable overhangs above the window so the cills don't see a lot of water running down them. So far I haven't seen a lot of water getting in behind the cladding through that hole.
  3. Here's ours, though you can't see the compriband. I ripped the cladding for the external reveal.
  4. James Jones have a good technical guide which answers this, available somewhere online as a pdf or from them in hard copy. From memory single JJI's were spec'd with osb as additional infill, doubles (for cripple studs etc) specified solid timber.
  5. Less than 10%. We are limited by dno export capacity to 3.64kw. The small increase pvgis showed in winter by altering the panel angle still amounted to bugger all in an absolute sense.
  6. Google Pvgis. Stick in your location and you can play with the angles and aspect and it will tell you what you are likely to get on average. I didn't see the point in trying to improve our winter generation as the improvement was minimal.
  7. I'd generally avoid making decisions based on what it does to the SAP rating unless your financing is dependent on it. As has been discussed elsewhere on here, SAP has some flaws in low energy housing. The only benefit you mentioned in using gas is the potentially lower running cost, but even that is only based on current prices and you can't guarantee it would continue. Like everyone on here, we've made many decisions based on what's important to us, rather than trying to cost-benefit everything to death. Assuming your house is fairly well insulated I'd imagine your all electric costs would be pretty low in an absolute sense ? If that's the case, I'd not be considering gas.
  8. @scottishjohn similar to what Peter mentioned, although they're not very common, have you considered a well? The groundwater head is clearly pretty high in places if you have springs and now would be the time to find out as it the groundwater head should be approaching its lower levels.
  9. You need to clearly distinguish between what insurance cover they hold and what liability the contract holds them to. They are two different things. Most engineers will try and limit their liability (their insurers require them to do so). So for example they may hold PI insurance for £10m, but limit their liability to £2m. With PI, the liability is usually limited to whatever the contract states (or you agree) - I believe that if it is not stated, it is essentially unlimited.
  10. As the LA BC will be reliant on the SER for structural design and sign off, I can see how it would work if you get the building warrant under way now. I think this happened with our application although there was only a week or two between architect submitted drawings and engineering design. It's likely there will be a few details to iron out between BC and the architect and the back and forth of that can take time, so I can definitely see some benefit in getting the ball rolling now. Clearly you won't get a warrant until they are in receipt of everything, but from the BC perspective, all they will need to do is tick a box saying SER certificate received and log the drawings (i.e. no checking of design details). In the warrant application you will need to state the certifier details. I think the thing that would worry me the most is the volume of work your SE has. Even if you do this, surely there is a bit of a risk they take some time to do the work?
  11. @Miek quick follow up to this. I spent ages adjusting the blower location and air distribution in vain, trying to get the backpressure within the required limits. Turns out the gauge I bought from WTE is a bit rubbish, so if you end up with a similar problem don't assume it's the treatment tank setup.
  12. Just a quick follow up in case anyone else has the same problem. I originally bought a pressure gauge off WTE (the vortex supplier) which turned out to be duff! The backpressure is fine when read with a working gauge.
  13. @scottishjohn In Scotland you are generally required to submit a 'private water supply assessment' with your planning app. If you don't then they will often put a condition on your planning that you provide one prior to construction work commencing. They are looking for evidence of both quantity and quality for a supply. The requirement to do this does seem to vary a bit between local authorities. This website: https://dwqr.scot/private-supply/technical-information/physical-and-chemical-properties/ Provides the relevant info on the limits for certain parameters - colour, turbidity, iron, pH etc. If you need to get the water tested then there are private labs that can do it, but I found Scottish Water the most economical and easy to deal with. You are generally correct that upstream landowners have a responsibility (in law) not to interfere with downstream users water supplies. This would also apply to a spring. In practice this can get a bit messy and I have been involved in a few jobs over the years with arguments between landowners and supply owners.
  14. I was speaking to a plumber about the oil-ashp hybrids the other day. Apparently the grant ones figure out what the most financially optimal source is to use based on heat pump CoP and delivered oil/electric price. They only use one or the other source at any one time. Other hybrids might work differently though.
  15. I would agree with this. We have just installed an oso cylinder and the only bit of it that feels warm (with water at 65) is the hot water pipe coming out the back. The cylinder itself doesn't feel much above room temp.