Navitron Renewable Energy and Sustainability Forum

Green Building and Design => Green Construction/DIY => Topic started by: Greenbeast on November 12, 2019, 08:08:52 AM



Title: Sump pump float switch
Post by: Greenbeast on November 12, 2019, 08:08:52 AM
I have a need to fit a sump and pump, i'm expecting space inside to be too limited for one of the standard float switches to work.
What i feel like i need is a fixed float sensor/switch mounted to the lid or wall of the sump so that it just runs vertically. Or something like a cistern ball float valve with integrated switch.

Anything like this on the market?


Title: Re: Sump pump float switch
Post by: Iain on November 12, 2019, 08:42:49 AM
Hi
Loads in the marine industry.
 Worth a look at bilge pump float switches. Most are classed as DC. Check the specs and if not sure just add a relay.
They do small float switches and if there is room for a pump there will normally be room for a float switch.

https://images.app.goo.gl/aB7U972ygAS4eRt28

This type but many others.

Iain


Title: Re: Sump pump float switch
Post by: Greenbeast on November 12, 2019, 08:55:10 AM
Thanks, i found something on RS that i'm now looking at


Title: Re: Sump pump float switch
Post by: billi on November 12, 2019, 09:17:26 AM
Maybe a complete wastewater pump station ,  is doing  the sump and pump in one go ??  Fair priced as well


Title: Re: Sump pump float switch
Post by: TT on November 12, 2019, 05:27:11 PM
Try ABS pumps, the link I provided last week to another thread is similar to mine, the float switch is integral to the pump body, not a separate unit. It has a selector switch for manual or auto.



Title: Re: Sump pump float switch
Post by: Greenbeast on November 13, 2019, 07:22:43 AM
Maybe a complete wastewater pump station ,  is doing  the sump and pump in one go ??  Fair priced as well

Is this the sort of thing you mean?
These prices do not see that fair compared to the component parts?

https://www.sumpsandpumpsdirect.co.uk/acatalog/Sewage-Pumping-Stations.html?gclid=CjwKCAiAzanuBRAZEiwA5yf4uhA8e3DnUBX5pj83Vzs0sMIgMuVmU79UeSBqAi7O9kSEIRsx1BWIEhoCNL0QAvD_BwE (https://www.sumpsandpumpsdirect.co.uk/acatalog/Sewage-Pumping-Stations.html?gclid=CjwKCAiAzanuBRAZEiwA5yf4uhA8e3DnUBX5pj83Vzs0sMIgMuVmU79UeSBqAi7O9kSEIRsx1BWIEhoCNL0QAvD_BwE)


Title: Re: Sump pump float switch
Post by: smegal on November 13, 2019, 08:12:27 AM
It's not a cheap way of doing it, but conductivity switches are pretty compact.

For example:

https://www.omega.co.uk/pptst/LVCN_LVCF_LVCR_LVCP.html


Title: Re: Sump pump float switch
Post by: ecogeorge on November 13, 2019, 07:02:47 PM
Get a scrap washing machine/ dishwasher -most modern ones have a polystyrene float switch on the btm to cut water if  machine floods.
George


Title: Re: Sump pump float switch
Post by: TT on November 13, 2019, 08:12:49 PM
Keep it simple. Use a pump with a built in float. Less to go wrong


Title: Re: Sump pump float switch
Post by: knighty on November 14, 2019, 10:25:50 PM
where is it for?

my parents cellar had a sump in it, old house so it was just a hole in the concrete down to the mud underneath

small pumps work way way better than big ones... they're quieter and less hassle... big pumps empty the pit in seconds... but are noisier and tend to dance about a bit starting/stopping



Title: Re: Sump pump float switch
Post by: Greenbeast on November 15, 2019, 06:41:50 PM
where is it for?

my parents cellar had a sump in it, old house so it was just a hole in the concrete down to the mud underneath

small pumps work way way better than big ones... they're quieter and less hassle... big pumps empty the pit in seconds... but are noisier and tend to dance about a bit starting/stopping



meat cutting room :)


Title: Re: Sump pump float switch
Post by: TT on November 15, 2019, 07:52:07 PM
What's the slurry like after wash down?
How far does it have to be pumped?


Title: Re: Sump pump float switch
Post by: Greenbeast on November 16, 2019, 07:24:19 AM
From experience in the small cutting room we have on farm currently, not a lot of liquid daily.

Not far at all, just needs to be lifted high enough to discharge into a waste pipe run on the outside wall


Title: Re: Sump pump float switch
Post by: TT on November 16, 2019, 08:04:35 AM
https://www.prestigepumps.co.uk/abs-robusta-200ts-110-1-50-c-w-10m-of-cable/?gclid=EAIaIQobChMIneiq7by95QIVzLHtCh3X3gVgEAQYAiABEgIcM_D_BwE

I've used this style of pump for 10 years no issues.
Currently on sale from this supplier.

They do 230 and 110 volts, I have the 110 version.

It has a auto manual selector on the top, with auto pumping down to approx 3mm of the bottom of the pump.

It has a threaded pipe outlet, that means you can use different diameter flexible waste pipe.
Nice and quiet
No connection to company
I try to minimise grief in my life by picking products, appliances that last as I used to work away from home and wanted the wife and kids not to have hassle/ Indidnt want hassle while I was away!

Good luck


Title: Re: Sump pump float switch
Post by: Greenbeast on November 16, 2019, 09:06:06 AM
I have two of that type but find the float valve on those needs a fair bit of room to work. Hence I was looking for something that worked vertically.
I think I'm sorted


Title: Re: Sump pump float switch
Post by: Greenbeast on February 20, 2020, 03:53:10 PM
We ummed and arred about doing this at all, decided not to then got told we had to.
So we used one of the dirty water pumps and cable tied the float in an upright position at the top of the pump body then hardwired the supply cable to a switched fused connection unit so it can be run manually. This way no worrying about failing switches/floats and faffing getting access to the side of the sump after concreting in

(https://lh3.googleusercontent.com/6M4ej3yheUeoStMCQSy0qelXICGNnio8FSghBXqfmUlI3N5-xTJHyKuXnjRVV7CLVnMXrrCHZaXNQYH2TNnaQtfbf1-OI_3IF1zIuAEQoUFkf1hsJCaFetkaIgTQTWlTytEpwhVMmQUtaXFAR-IJle7bErmET9GYywn_2m45qNDjgPf2fHUPyb_l9QEUB0PVRHqR_RDCXe2DK8KTRZHHhXlQfMT0jFwJI-9CJ_p9NwSs22JmnSUOIa17YH_7zOKXMuib6RbN-R6QUlBHLei0ISrhNz8zijDWXg5zxzuncJiAgWstrtqep0CrTlnYE7Oafn0sFwiHb7lr3Yd37ED4AVkF5tuucWShLYEM-39r4tXgYbHriQq1cL0kp6uC3rdGy0n25aSFYQa78lRmO9fGZ7B6dssizUCIhaz3uO-sn-teQfIpmzBj_4IXTDx8WqtXCeapnkEID1flkOA1KG-z3WDZb95yyGSrlSRgCdJaBl7chz89yKMb-TRmpQwfWJ52QN7ZZEK6Au2RRbgJg77DHMWFUgkYM9H-npSZnW4wzJ6rdKSL2-4JPWDX50RTeEtnmLVHTqfvVgxzwjS2MFH4pu4WH66U7GVhtWI3l6gRWemoU1WL7vXZ8pVaGyUwGCDC4HYa02-n15GZSCowcImSJmw_Y_7j3sHrKYXCdhr-yMD8V9MJAELXpSjZml76oldHJHz_lF-Hvp3hwxLSPRBZJpRY6aFIbEhBt8yRLF1rDGo-upAL=w366-h488-no?.jpg)



Title: Re: Sump pump float switch
Post by: Iain on February 20, 2020, 04:39:44 PM
Hi

Quote
So we used one of the dirty water pumps and cable tied the float in an upright position at the top of the pump body then hardwired the supply cable to a switched fused connection unit so it can be run manually.

Be careful you don't accidentally leave it running when dry and burn the motor out.
These motors tend to be intermittent run rated and also use the water around the body for cooling.

Iain