No matter what you do I think you are going to have guests point out that something isn’t working which could lead to annoyance or requests for refunds or bad reviews.Plus, providing bottled water over the long term probably isn’t going to save you much money compared to paying a plumber to get the fridge connected. 

In the desert it costs me LESS than $20 for water.

If they haven't already, ask both of them to provide a detailed scope of work and then compare pricing based on the scope they provide.

The issue with watering your foundation is that you have to do it always, every year without a break in order to achieve the desired effect.

We have had many water leaks that have damaged the flooring.

Note that water penetration is not limited to flooding from rising water levels on the ground in a weather event.

Water from the well has sediments and water forms a yellow lining in toilet.

Usually if it is something no HoA I solve the issues but now the prolem is under the HoA mercy that seems to careless and the water damages are severe and scary on the photos.

What I have seen in the research is to find a property you are interested in and compare to other comps in the same neighborhood.

He used to troll these waters for suckers very hard until I found out that his claimed experience and transaction history was fake.