Item Price
100 watt solar panel US$75
12vdc salvaged battery US$-50
Salvaged plastic tank US$-20
eight 1/4 " x 2" lag screws 30 cents each $2.40
Stainless steel wire 20 feet $7
2.5 square feet carbon textile $16
Henry 208R roof patch, Rubberized $6
45 feet 10 gauge wire, salvaged $-20
Two air pumps, DC $12
16 collector bottles, plastic, recycled $-4
Charge controller $30
Paper binder clips $1
Clear tubing $4
Plastic 13 gallon bags $1
Tubing connector tees $3
TOTAL $157.40

Salvaged or recycled materials are estimated and noted as negative numbers, not counted in the total cost.