Individual solar cells are somewhat difficult to solder to. Self-adhesive metal stained-glass tape makes for the easiest soldering job--the tape holds itself in place while you solder. Use electronics solder that contains 2% silver. One side of the cell is (+), the other (-).
rain check (plural rain checks) (idiomatic) Any voucher or note from a merchant to a customer to provide an item the merchant has run out of at a later date for the item's current price, or (in a more literal sense) to provide a service at a later date.
PCA means the Plumbing Code of Australia; rainwater means water collected directly from roof run-off; rainwater tank means a tank or a number of connecting tanks designed to collect rainwater from roof catchments; refrigerated air-conditioning work has the meaning set out in regulation 28; refrigerated package appliance means a