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Hi there

 

I'm hoping to get some feedback from people overseas (UK, Aus, US) about vertical liquid level switches that can be used to construct a level switch for a pump.  The DIY models are very simple, constructed with pvc and then using over the counter level switches.  I have done searches locally but are not getting results.  I'm hoping to get some more specific info regarding recommended models or agents.  The one very basic model used in a YouTube video was a Madison Mini Vertical liquid level switch model M8000.

 

I'm tinkering with a design for an aquarium based AP unit, and need this kind of switch

 

Thanks

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I've been using a very simple Float on a rod type switch.  Actually the switch is in a little housing above and the rod attaches to it.  The rod has a stop at the bottom and a stop at the top.  When the water reaches the point where the float pushing against the top stop it turns the switch on then when the water level drops to the bottom the float is heavy enough that when it rests on the bottom stop it pulls the switch down.  I have this housed in a mesh tube so it doesn't float around and get fouled.  I think I've seen the actual switch in the hardware store in the plumbing section.  It could be flipped over to operate opposite.

 

Otherwise there are magnetic float switches available from Aquatic Eco Systems Water Level Switch

 

Thanks for the info - I have looked at those, but I am looking for manufacturer or product details in order to search, then start looking up stores here.  Either they just don't bring them in, or they have very poor online links to their products.  I'll have a look at the ones at Aquatic eco to see if they give product details.

TCLynx said:

I've been using a very simple Float on a rod type switch.  Actually the switch is in a little housing above and the rod attaches to it.  The rod has a stop at the bottom and a stop at the top.  When the water reaches the point where the float pushing against the top stop it turns the switch on then when the water level drops to the bottom the float is heavy enough that when it rests on the bottom stop it pulls the switch down.  I have this housed in a mesh tube so it doesn't float around and get fouled.  I think I've seen the actual switch in the hardware store in the plumbing section.  It could be flipped over to operate opposite.

 

Otherwise there are magnetic float switches available from Aquatic Eco Systems Water Level Switch

 

Your description and the picture of the switch at Aquatic eco fits both models I am considering - now to try to track them here.

TCLynx said:

I've been using a very simple Float on a rod type switch.  Actually the switch is in a little housing above and the rod attaches to it.  The rod has a stop at the bottom and a stop at the top.  When the water reaches the point where the float pushing against the top stop it turns the switch on then when the water level drops to the bottom the float is heavy enough that when it rests on the bottom stop it pulls the switch down.  I have this housed in a mesh tube so it doesn't float around and get fouled.  I think I've seen the actual switch in the hardware store in the plumbing section.  It could be flipped over to operate opposite.

 

Otherwise there are magnetic float switches available from Aquatic Eco Systems Water Level Switch

 

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