Spa for a vacation home?

[brenrn]

Hey all!  

We love our Caspian so much we are thinking of buying another spa for our vacation home.  God, it would feel so good to soak after a day of snowmobiling or skiing!  I'm wondering about maintenance though.  Some of the issues I'm worried about:

1.  The tub would be located outside and it gets pretty darn cold.  It was 20 below last weekend while we were there.  I know others have tubs and live in really cold areas so I'm thinking that this may be a non-issue.

2.  Chemicals and maintenance.  In the winter someone is there at least every other week.  Sometimes more.  Would the tub be ok left alone on those off-weeks?  

3.  Filling the tub.  We have well water and it is not the greatest.  Very high iron content.  I'm wondering if this will be a problem or if a hose filter would solve the problem.

Well, that's what I've come up with so far.  Anyone that has any input it would be greatly appreciated!  

[Brewman]

We live in Minnesota, and just got thru a very cold week, with low temperatures in the -20 range.  
No problem- just to be safe, we upped the time for our filtration cycles, probably didn't need to, but did it for peace of mind.  
If you are away a lot, maybe get someone to check in every few days, just to be sure the power is still on.  
Hate to have a breaker trip during a cold spell.

We use a bromine routine, and have no water quality issues when our spa goes unused for a week or so (only when it's really cold and windy).  

Not sure about your iron question, since our tap water is pretty good.  Take a sample of your outside tap water to your dealer, they should be able to offer suggestions.  They may have other customers with in your area with well water.

Brewman