In the jungle

Yesterday in the UK there were 346 covid deaths.

One of my bikes is ten years old. I bought it new from a Honda dealer. The numbers on the numberplate do not match the numbers in the green book. They are one digit out. No government test station has ever noticed that. I will sort it out if they ever do.

No. That is good to go. Just flip it over.

Useless. How are you going to rape, murder and burn citizens with that?

I think where we differ is in what we consider reasonable flow and pressure. I think we can both agree that 4 Bar is reasonable pressure. I run my system at that pressure as do you. Is 0.3/0.4 Bar or even 0.8 Bar reasonable during a power cut? You say yes. My view is no, as in not worth bothering putting a system in place to achieve that result, but my view is influenced by the fact that power cuts here are generally of short duration.

Well you could have 0.8 Bar at the shower head in a power cut if the tank was maybe 9 metres above the shower head; which his tank almost certainly isn't.

Yes. I know all that. I was talking about the performance of the system under gravity feed. If you look at my earlier posts I made specific reference to the performance of the downstream system in my second post before you chipped in. The OP is interested in what happens in a power cut. I know all about pipe diameters, the angle of the bend and yada yada yada. Try addressing the OP's question. Performance when there is no electrical power.

The OP and I are talking about a system without a pump. Gravity feed only. The only way what you say makes sense is if you are talking about a pumped system.

Wrong. Pressure is determined by the height of the tank less pressure losses in the system downstream. It is basic physics.

At 5 metres your water pressure from the water tower would be 0.5 Bar less pressure losses in the pipework thereafter. I have a water tower you can have for free. It's 8 metres tall and made from concrete ???? I discontinued using it because the water pressure is feeble, power cuts here are generally less than half an hour and I don't want the liability of people working at 8 metres height on maintenance and repair. In your situation I think I would either go for a generator or buy candles and torches. Bear in mind that a generator would have particular maintainance requirements by virtue of infrequent use. Also bear in mind that if you use a generator you must not backfeed power into the electricity grid. Imagine some poor soul up a ladder trying to fix the problem and you are pumping power into the system. I went for the candles and torches option.

It's Chinese. Low quality, poor brand support, carburettor. 10K tops. Probably less.

He is 12 years old. Something second hand and cheap. At that age there is a reasonable chance it will get lost, broken or stolen. Haven't his relatives got a cast off phone somewhere? I haven't bought a new phone in the last 15 years. I use my wife's cast off phones.

I watched a vlog recently where Nico Rosberg interviewed Alain Prost. He said that one of the ways he gained a competitive advantage was by mixing compounds on his F1 cars. On certain clockwise circuits, for example, he might choose to have three medium compounds and a hard rear left. I think Alain was fairly unusual in this approach but there you go.

Is it four wheel drive? What is the vehicle? What are the tires and their sizes?

I worked in programming in the late 1970s in Burroughs Algol. The programs were entered using punch cards and debugging of programs was done in multiple 24 hour cycles. A hard disk drive (multiple disks) was about the size of a washing machine. 1MB of RAM was cutting edge stuff.

The headline figures are not real. Because the system does not work you have: Multiple applications by the same person Multiple acknowledgements and approvals to the same person. It works the same way with call centres. If they are understaffed they will say they have 100,000 callers a day. But actually they have 10,000 callers a day calling, on average, ten times to get a response. My guess is nobody knows the actual number of people approved under this process.