[C320-list] Bilge Pump Makers? Comments? Experiences?

Danny Jensen danny at jensenshouse.com
Tue Jul 4 13:21:02 PDT 2017


Thanks

Sent from my iPhone

> On Jul 3, 2017, at 5:06 AM, Stephen Cox <scox at timmin.com> wrote:
> 
> 
>> Stephen,
>> I'm interested in using a relay connection to run my primary 
>> pump off my alarm float switch per your design. Where did you 
>> get your relay?
>> 
> 
> The latching relay I used can be found on eBay. See:
> 
> http://www.ebay.com.au/itm/Passive-Bistable-Latching-DPDT-8-Amp-Power-Relay-
> Module-12V-Version-RT424F12-/201209912982?hash=item2ed90b9e96
> 
> It has the advantage that it stays thrown in whichever position after you
> cut the power.  It is driven by taking the S1 or R1 points to ground. Note
> that I do not drive the pump directly from this latching relay but rather
> used it to drive a more robust 30 amp automotive type relay to switch in the
> pump power.  Such relays are cheap and can take the starting currents
> easily.
> 
> The high level / low level float switches were normally open / normally
> closed respectively and these were used to control the set (S1) and reset
> (R1) pulses accordingly utilising one set of the switched terminals on the
> latching relay.  I used:
> 
> http://www.ebay.com.au/itm/Liquid-Float-Switch-Water-Level-Sensor-Double-Bal
> l-100-250mm-for-Fish-Tank-Pool-/112445356670?var=&hash=item1a2e43fa7e:m:mqJ1
> HbYz7d1gifevbiwlmMQ
> 
> To can change a particular float switch from normally open to normally
> closed or vice versa by inverting the float on the rod that controls the
> switch you are interested in.
> 
>> 
>> Good idea about having a hot spare auto sensing pump. Do you 
>> have the part number for the primary Johnson pump?
>> 
> 
> My day to day pump is Rule 1100GPH. See:
> 
> http://www.defender.com/product.jsp?path=-1|51|2234226|2234227&id=3798501
> 
> And my backup "oh dear" pump is a Johnston L2200.  See:
> 
> http://www.defender.com/product.jsp?path=-1|51|2234226|2234229&id=2097133
> 
> 
> Hope this helps,
> 
> Stephen Cox
> Tegwen #1141
> 
> 
> 


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