I found the dimensions of my new pool: 15 x 30, average depth 4'. Gallons, 13446 gallons, with a surface area of 450 sq'. It's also 17 years old, not 30, so it should be okay for a several more years, right?

For water gardens 10 � 15% of surface area should be bog filter, and for fish ponds there should be 25 � 30%.

That means that for garden, 45 to 68', and for fish, 112- 135 sq feet should be bog.

Since I plan to add fish in a year or so, I could build my gravel filter 50'x 3'. That wraps around the far end and the left side of it, almost the entire way. I need 2 cubic yards of pea gravel.(50 x 3 x 1 ft� = 1.85185 yd�)

This is looking more doable.

Tomorrow I find out about the filter and pump: the pool guy is coming.

I can still eliminate the chemicals and add plants and the aerator, and work on the bog filter over the months.

Ella