35A Marine Rule-A-Matic Switch - 12V Automatic Bilge Pump Switch - Mercury Free, Durable, Reliable, and Easy to Install

I have not yet installed it but the switch feels solid clicks so should be reliable, the hinge feels quality, small enough to fit almost everywhere. Vires are marine grade. Would buy again.

8 Years so far. has worked very well. The trick to longevity is to place in a dry location. The float should trigger only as unusual water level is encountered. bolting it to the lowest point of the bilge where it will be forever submerged is probably the reason many are failing so early. Default to a location that indicates high water without needing to be wet all the time, and this will last many years. A small shim below giving some clearance from normal bilge height will go a long way.

This device is top of the line, at least that is my experience. Though recently I had some problems when at the same time a 2000 GPH pump failed within two months of use even though it has a four years warranty. Amazon Rep told me that I would need to contact the manufacturer because my time warranty through Amazon would be only 30 days and from then on...I would need to contact the manufacturer. ( somewhere in China ) I understand Amazon policy, but honestly I expected more from this Co. And then it occurred that a cheap float switch failed 48 hours after installation. But it happens that the cost of installation is at least three times the cost of the device. So, I decided to go for RULE....to be on the safe side. This is my recommendation. to whoever needsto replace a damaged float switch that are always located as deep and unaccesible as the boat builder could install them....

Seems to work well. Would prefer if it turned on a bit sooner and was a pain to install on my boat, but that was not an issue with the pump. It is great that you can attach to your hull then snap in place. A product that you hope always works in an emergency.

Very easy to install and to power. Very fast to activate pump. Installed it in my bilge area and has not failed me

Works great

Works great Because its for a catamaran, I keep a couple spares on board.

My 1998 16’ Lund is a real leaker. After about 4 hours the water would start coming up to the floor. This required me to remember to turn on the bilge pump every so often. If I got preoccupied sometimes I’d forget creating extra weight in the boat. I was usually reminded when the bow trolling motor would surface and make a bunch of noise. Installing this switch has taken that out of the equation. It kicks on every half hour or so now. I bypassed the switch it was hooked to and tied it into the power going directly to my battery with a fused line. I know my Lund has a double hull but I really didn’t want to drill into it. I had a 1” thick piece of HDPE polyeurethane that I cut a block out of and screwed it to that, then glued it to the floor. Gorilla glue or a construction adhesive will work, I used a silicone based adhesive I had laying around. This also elevated it up just a bit from the pump so it will for sure shut off. If the float can’t drop down low enough it won’t shut off. If the float is at the same level as the highest point of the intake on your pump, this may happen. Now I don’t leave a trail of water to my house when I trailer my boat home from the river. The big advantage is I can leave it on a dock at a resort or cabin overnight or longer without worrying about finding it on the bottom in the morning. It also gets rid of rainwater as needed.

As superb, quality float switch as is to be expected from Rule.

ich würde sehr gerne 0 Sterne für diesen Schrott geben, was aber nicht möglich ist. Vorher war 15 Jahre der gleiche Schwimmschalter im Boot. Auch damals hatte die Bodenplatte aufgegeben. Diesmal nach 3 Monaten stand ein bisschen Süsswasser in der Bilge. Die Bodenplatte ist völlig zerfallen. Billiger und Schrottiger kann man so ein Teil nicht konstruieren.

Funcionamiento y diseño perfecto, precio elevadisimo.

good and effective

Excelente