For the past few years I’ve been using an inexpensive hand-pumped sprayer to kill moss on my roof in Campbell River. The sprayer is an HDX-branded 2 gallon tank sprayer from Home Depot, sells for about $20. The moss removal serves far more than cosmetic purposes for the house; the moss eventually grows underneath the roof shingles and can lift them up and cause leaks, as well as holding moisture that will seep into the roof. The ingredients I use for the spray are typically 20-30% vinegar (the cheapest I can find at nearby grocery store) and the rest, tap water. Low toxicity and low impact to things other than moss and other vegetation.
Anyone for a vinegar bath?
Amy, next steps in diagnosis might be using an ohmmeter to do some continuity checks from the relay pins outward,…