Mega flow is great, but it's only as great as your supply pressure, as Jellybaby says.
If you remove the feed tank, you can't fit a pump later.
You can do feed tank + megaflow + pump, the megaflow being used a standard hot water cylinder. But then any cylinder will do.
You can measure the supply pressure - I would before making a decision. The supply pipe can also be a limiting factor, so check that too. They can be old and narrow.
Also check for pressure reducing valves around....we have one, presumably to protect the now defunct water softener on the first floor.
Mega flow is great, but it's only as great as your supply pressure, as Jellybaby says.
If you remove the feed tank, you can't fit a pump later.
You can do feed tank + megaflow + pump, the megaflow being used a standard hot water cylinder. But then any cylinder will do.
You can measure the supply pressure - I would before making a decision. The supply pipe can also be a limiting factor, so check that too. They can be old and narrow.
Also check for pressure reducing valves around....we have one, presumably to protect the now defunct water softener on the first floor.