Hi Derek I believe we have the Model 101 series switch mated to a PAR 36680-2000 diaphragm pump. The switch we have can be seen at this link https://waterwitchinc.com/bilge-switches/
I cannot remember where I purchased it but I see that Water Witch sells on-line. One of the great things about this switch compared to a float switch is the ease of mounting. I zip tied it to a keel bolt and was done in less than 5 minutes. Now that I think about it am wondering if that may eventually cause problems with wiring and metal touching the keel bolt though … The diaphragm pump is located in the galley under the sink and allows the pickup to be less than 1cm from the bottom of bilge. With the water witch switch located low in bilge also and the fact that the switch runs for a few seconds after water level below its contact area the bilge is pretty dry. The main downside of the diaphragm pump is the flow rate which is much less than other types of bilge pumps. I think all of this was discussed a few years ago on this list. That is where I found out about this switch. Mike Persistence Halifax, NS From: Tortuga [mailto:tortugas...@gmail.com] Sent: Thursday, June 21, 2018 2:35 PM To: cnc-list@cnc-list.com; Hoyt, Mike Subject: Re: recommendations for a small bilge pump Hi Mike Can you elaborate on which Witch you have? I haven't heard of them before but they sound super. The web site shows Stright MacKay as a dealer, but I can't find one in the new catalog. Also will you name your pump? Thanks Derek Kennedy C&C30mk1 #553 "Tortuga" Ballantyne's Cove, NS
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