Pearson 10M Water Tank Re-Fit |
Some possible flexible tank options:
Plastimo 16657 - Complete rectangular watertank 200 Liter (53 gal, 28x68")
Nauta FT911187 52.5 gallon Flat Dimensions: 26.5 x 62.5" (67 x 158cm)
Vetus 42 Gallon 31x35" or Vetus 58 Gallon 29x60"
I think any of these tanks would fit though effective capacity will be reduced because of the shape of the space. More researh is underway.
Tank Volume Calculations
A flexible tank offers some advantages. Mostly in simplicity of fit. The volume of the space is on the order of 58 gallons. But full use of that capacity isn't really possible with a flexible tank. And a flexible tank will assume the more triangular cross section shape of the space which will reduce the effective capacity. If you take the tank capacity as a cylinder and force it to a triangle the capacity will be reduced to something in the 60% range. So a tank speced at 50 gallons might give only 30 when constrained by the shape of the space. Still researching all that.