well you are going to need a 240 volt gen.
at least to do the pool pump..
unless you get a second pool pump for the back up that is 120 ac..
so what is the pool heater?? electric or gas?
and house water heater? electric or gas?
yea do a site survey and it is best to have a meter system for the breaker panel..
that helps to see loads when you are on grid so you can label the breaker box when you see the loads...
lucky on my system here as I wired it all my self!!
over kill dedicated runs. lol
so at least I know what runs where!! and it is marked in the printed box cover.
square d has software for that on their site. or a template for MS word. fill in the blanks and print!!
for most homes the honda eu7000is is the best in class.
right now 02/07/2020 they have free shipping and $4449.00 price tag..
but they are quiet!!
and if you need tri fuel there is an optional kit now for $500.00 plus hoses to the house.
so the big question is are you able to install this your self?
or are you hiring it out?
if you are good with electrical these are not bad to put in!!
take your time!!
I used 6 gauge on my gen inlet feed to the interlock breaker panel... that gets me a better rating for power..
that is what worked for me. 50 foot was 110.00 retail I catch that on the 11% at menards and get it for 11 bucks less.
see the chart here
always room for expansion!! run the wire once!! lol!!