I am fed up with the poor longevity of these crap switches. Now I do maintain my shower sumps on a regular basis however this morning my wife says there is a problem while taking her shower. Normally no water backs up when things are working well but now she was standing in 1+ inch of water so I knew the shower sump was having an issue. Sure enough a tap on the float switch and she fired right up. Took the switch out and apart and cleaned her up to what looked like brand new. Reassembled it all and turned on the tap. worked great for about 8 times and then water started to fill too high in the sump so a light tap and off she goes.

Bottom line is the switch internally seems to become intermittent. They seem to last about 4 years or so and they are awfully proud of their product at around $100 cad once delivered and taxes are paid. Last time I replaced it with their 40a model assuming it would last longer but that did not happen. This is the one that is installed in there like the original. https://www.amazon.ca/Rule-40A-Matic-Switch-Moisture/dp/B000O8DA0K/ref=asc_df_B000O8DA0K/?tag=googleshopc0c-20&linkCode=df0&hvadid=293019546650&hvpos=&hvnetw=g&hvrand=9475531068294994592&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9000603&hvtargid=pla-574196784892&psc=1

I am going cheap Chinese as the ratings are very high and they are so much cheaper. Bought 2 just to have a quick change spare if required. will only be able to use 1 screw down hole but that is more than enough. Have a feeling these will last much longer at 1/5th the price. https://www.amazon.ca/gp/product/B083FQK2WP/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1