SteamyTea

That is about 60 quid per current house. Good on him, the Government lent me, interest free, £550 last year to pay my electricity bill. £2bn is about £8k a home when it is spread over 250k homes. Not a life changing amount. Another way to look at it, is by region, which is what levelling up is all about. So take a scummy area of Cornwall, and assume that 1000 homes will be build, average price £230k. That is £230,000,000, so almost a 1/8th of the budget used up, in one small part of, one sparsely populated area.

I am with the installer here. Having made tooling for blowing expanding and structural PU, inserts, which the existing sheets are, will cause problems. Isothane are probably talking about reactivity between different materials, and not the practicalities of installing. Generally, when expanding flexible PU is moulded, it is poured into an open mould, then the mould is closed and clamped. Vent holes are usually added after a few trial shots to remove air/gasses where voids appear. Voids are not always caused by the liquid resin unable to reach an area i.e. flow around a solid insert. They are often caused by the ongoing shrinkage after initial curing.

Pulp's Pink Glove

Are you saying that the common/herring gull is vermin, it is a protected species you know. I like having black bags, wheely bins blow down the street on a windy day, damaging cars. I have some golden rod bamboo and it grows easily in a builders bucket.

Can you take loads of pictures please as this issue comes up quite often.

I could not remember who had done a good job. You used the right amount of resin I think. How it should look. How far from Slough are you?

Yes. Seems ideal for an irrigation system.

Does he. Part of the processes of laying up composites is to exclude all the air from the matrix. One could argue that it is the fundamental part of the job. The whiteness, this is dry mat i.e. no resin impregnation, and the longer, and larger, 'bubbles', this is a sign that the mat was not consolidated with the resin before it started curing.

When if the first heavy rain due? It is really a shockingly bad job and when the winter freezes come, that will degrade it even faster.

That frame you have made. Can you make them leakproof, then put water though them, introducing holes where you want to water the plants?

No. It should be semi transparent and you should be able to see the substrate though the mat/resin matrix.

Oh dear. That has been done by someone that has never done it before.

Glad I am not loosing my touch, it has been a few years since I did GRP work every day. It really is going to have to be ripped off. If you have no luck with the builder, ca you claim on your insurance?

But not too hot and not in direct sunlight if possible.

Bad luck, I am 290 miles from you. Do you have any pictures of the work being done? I suspect that they over catalysed the resin and it started setting before they managed to get the mat impregnated properly. As it rained during the process, I also think there will be uncured parts as well. As @TonyT says, is looks like a tarpaulin.

Where about in the country are you?

Oh dear. Another builder that think GRP is a job anyone can do. Regardless of the price (an iPhone is not really worth more than an Android) this looks to be a case of grind it off and start again. Just about everything that could go wrong, has. I have no idea how you are going to recover the costs from your builder, not easily I suspect.

I think these are the .py files. They will need a little modification for your sensors i.e. change the 28-xxxxxxxxxxxx to your DS18B20 number, and create directories to where you want to store data. 1 Wire #!/usr/bin/python3 #imports necessary libaries import os, time, datetime #load drivers os.system('modprobe w1-gpio') os.system('modprobe w1-therm') while True: #Sort out the time format dt = datetime.datetime.now() runday = dt.day dt.day == runday #sensor 1 tfile = open("/sys/bus/w1/devices/28-xxxxxxxxxxxx/w1_slave") text1 = tfile.read() tfile.close() temperature_data1 = text1.split()[-1] temperature1 = float(temperature_data1[2:]) temperature1 = temperature1 / 1000 #opens and reads the time ts = time.time() #sets time to UTC and dd/mm/yyyy hh:mm:ss format UTC = datetime.datetime.utcfromtimestamp(ts).strftime('%d/%m/%Y %H:%M:%S') logfile = '/home/pi/monitoring/data/1wire-%s-%s-%s.csv' % (dt.day, dt.month, dt.year) # logfile = '/var/www/html/data/1wire-%s-%s-%s.html' % (dt.day, dt.month, dt.year) #creates and opens or appends data to file tfile = open(logfile, "a") #writes to data file tfile.write("%s"%UTC + ",%s"%temperature1 + '\n') #closes data file tfile.close #sleeps for (n) seconds until next reading time.sleep(10) Switch #!/usr/bin/python import RPi.GPIO as GPIO GPIO.setmode(GPIO.BCM) import time, datetime GPIO.setup(7,GPIO.IN) input = GPIO.input(7) while True: if (GPIO.input(7)): ts = time.time() UTC = datetime.datetime.utcfromtimestamp(ts).strftime('%d/%m/%Y %H:%M:%S') tfile = open("/home/pi/monitoring/data/switch.csv","a") #writes to data file tfile.write("%s"%UTC + ",%s"%input + '\n') #closes data file tfile.close # print("Button Pressed") time.sleep(6)

Looks similar to the medicine the French Doctor gave me. Is it just a tube with some air in it that acts as a spring?

One Raspberry Pi GPIO pin will sense the temperature and can write to a file. Another pin can sense, via the relay (in effect a no volt switch) when it is on. When the pump is on, the GPIO that the relay shorts out and raise a flag against a time stamp. Then a bit of spreadsheet work to show the data. I think I already have some code written for this. Shall have a look tomorrow. Not so different from my electrical data logger, which just used a light pulse as a switch.

A flow and return temperature logging and a sensor that know when the system is pumping. As long a you know the flow rate, you can work out the rest. So two DS18B20s and a 240V relay that shuts when the pump is energised. Then log the time the relay is closed.

What sort of monitoring you going to do on it?

Is it because it is mechanical? Not like those pesky photon upsetting the quantum state of electrons.

I would start with listed and heritage buildings.

So yo are going to add a greater volume of water in the pipes, but then reduce the amount of water in the radiators. Have you done a room by room hat loss calculation? If not, that is the first thing to do.