Camper Trailers Tech Tips

solar shower bag heat test





solar shower bag
heat test 


    We bought two of the solar shower bags you fill with water & place in the sun to warm the water. We noticed on one bag it said to fill with water & place the clear side up while the other said to place the black up.

    An experimented was needed. We filled both with water, removing as much air as possible & then placed them as per the instructions. After a couple of hours, the one placed clear side up was warm, while the one placed black side up was still cool.

    We then decided to turned the clear side up instead and after an hour this bag was warm enough to use for a shower.




clear side up

black side up



heating as per instructions

both clear side up


 thanks to David & Susan Kruss for sharing this idea



february 2009