We use a gravity system
to feed wash water into the house from a tank on the hill. The
tank is filled by a pump in the creek, turned on manually as needed.
The line between the
creek and the tank isn't buried, so we can only fill the tank during
relatively warm weather. Every winter, we hit a period like this
recent spell when we can't fill the tank for weeks at a time and water
levels in the tank get very low. Every winter, we resolve to keep
the tank at least halfway filled to prevent the problem. And each
summer and fall, we let down our guard and forget.
This year, we've decided
to try a different method. Every Monday, if the line is thawed,
we'll top off the tank. Having a weekly system seems more likely
to succeed than depending on one of us noticing the tank is below
halfway full.
Our new method will have to wait until a warm spell finally lets the pump run, though.
In the meantime, the tank is getting lower and lower, and it looks like
we might actually run out of wash water this year. Luckily, we
can pump drinking water from the well to fill in the gap, if necessary, but that will bypass Mark's new delight --- the hot water heater. I guess that's an incentive to stay more on top of the tank-filling protocol.
Robert --- There's no filter going into or out of the tank, although the tank itself acts like a sediment filter since water sits in it for weeks or months before being used. This is what the pump looks like in the creek. Since this water isn't for drinking, we figure it's fine untreated, although we do add a little bit of bleach when we do dishes with it.
You can see our drinking water system here. We did upgrade to a bigger UV light and a stainless steel container last year.