Apologies if this is not the correct area of the forums. Please move if needed.
I am planning to self-install our water connection beyond the boundary after Scottish Water has installed our new connection to a stopcock on boundary edge. Before I purchase materials for the job, I'd like to delve in to the knowledge/experience of members here to make sure I have everything covered and the layout of the connection is suitable.
Site
We will have a supply for the house (yet to start), garage (which will double as the point for building water supply) and temporary caravan. In the future, we may run this part of the water connection beyond the caravan where we plan to have a greenhouse.
Layout
Scottish Water have confirmed they will install up to a stopcock on the boundary border, which is to be enclosed within a boundary box.
As you'll see on the drawing, beyond this, I have the supply splitting with a 90° tee and each line with it's own stop tap. I'll aim to have all three stop taps (x1 SW installed and x2 self-installed) accessible from the boundary.
The north line will go towards the finished position at the house, capped and waiting for the build to start. The stop tap will be shut off until supply is integrated to build and needed.
The south line will serve the garage (long term as garden tap, short term as building water) as well as temporary static caravan. Just beneath the standpipe, there would be a 90° tee taking the supply to the standpipe. Beyond the stand pipe would be a stop tap to control supply to the caravan.
Material list
Before purchasing materials, have I got everything covered below:
MDPE 25mm blue pipe (enough length as required)
x3 Compression stop taps
x1 Stop tap chamber (boundary box)
x2 90° tees
x1 Underground water main warning tape
x1 25mm pipe cap
x1 Stand pipe (non-return valve and compression inlet)
Is the layout are materials list suitable for what is required of the job. Due to current circumstances, local merchants aren't open so would prefer to correctly order everything is one go.
Thanks in advance!