a cold water main should be a minimum of 3/4" and to figure the right size of main you will need to look up in the UPC and figure out all your fixture units and PSI and elevation
Swim in cold water.
As cold as you can. Putting it immediately into ice water and keeping it there as long as you can will reduce the size of the blister that will form.
it will depend on its size (the total litre capacity), how many fish there are, and wether it is a cold water or heated aquarium.
the water company - if you look on their website it should tell you what the minimum water pressure you should expect is. You can test this by timing how long it takes to fill a certain size bucket. This is only cold water. The hot water pressure will depend on your boiler and should not be reported to the water company. There is more to this Yes the water company states what the min pressure should be in some cases as low as 8 PSI but before you start doing the bucket measurement one has to know the size of their pipe as each diameter will give a different flow rate and also what material your water main is as many ferrous mains do have a severe build up of mineral deposits which also affects flow rates . Also some mains do get "crushed" over the years if proper compacting is not used to insure the main is not bearing to much weight
You should wash in cold water and use low spin on your washer.
Depends on the size of the heater Commerical etc
the water fall its self, Clifton hill, its size, the water and its location
Cold water fish will store more fatty tissue by size than warm water fish do. They pack on the added fat for lots of reasons like spawning, travelling or for protection from cold water temperatures. Warm water fish tend to move around a lot more and will also probably eat less by their size although warm water fish do get much larger overall.
cold water makes the muscles and tissues contract, thus reducing the size of transportation channels of blood and nutrients and so slows/impairs movement.
The inlet and outlets are the same size on a tank, weather your plumbing is the same size should be the question. This is not critical, but they should be the same,if there is no backflow restrictor on a plubic line and the inlet is larger then the outlet,then you could be pushing hot water into the pubic line. New installs recommend an expansion tank,but few people install them,unless they get water hammer,knocking sounds. But most new water heaters have a restrictor built into the inlet. There is no difference between gas and electric, the water does not know how it is being heated.
Get a king size because it will have hang over and you can curl up in it on cold nights.
One needs to consider their needs and capabilities than the typical size of the cooler. Take into account the incoming water temperature, how cold that water needs to be chilled, and the water flow. Some chillers can be around 50 pounds and vary in size.