Saniflo alarm not adequate

[Pocster]

So this crap battery powered high water alarm worries me . Just tested it , batteries apparently flat even though replaced only 3 weeks ago .

Not much faith in this . Could be flat and I wouldn’t know until kitchen flooded 

 

So want a pressure switch that links to a mains powered but battery backup unit . Unit has a light to indicate it’s actually on and also possibility to trigger a zigbee relay so can notify HA 

Most of these alarms operate on a float which I don’t want .

Pressure switches seem to be industrial or maybe a washing machine type pressure switch ???

Any solid suggestions on a pressure switch , alarm box that will work together suitably appreciated 

Edited July 14 by Pocster

[Pocster]

Maybe this alarm box ?

 

https://www.tritoncontrols.co.uk/alarms-and-controls/basic-alarm-easyfit.html?ppc_keyword=&gad_source=1&gad_campaignid=12120096619&gbraid=0AAAAACdOt02h4JZ2Q8Pdc71YfcucXK6V4&gclid=CjwKCAjw1dLDBhBoEiwAQNRiQThOWqB0p_yPqPWb-ZbaDP_56QCHJGeU_7bjHp0DB25wdPJVVM12UBoC-98QAvD_BwE

 

But a suitable pressure sensor switch seems to be a bit of a minefield of possibilities 

[Mr Punter]

I don't understand where the pressure switch would fit in.  It is normally float type switches for these applications.

[Pocster]

5 minutes ago, Mr Punter said:

I don't understand where the pressure switch would fit in.  It is normally float type switches for these applications.

The saniflo has a pressure switch . You drill a hole in the top of the saniflo , place a plastic tube it it . The saniflo then sits ontop the unit with the pressure switch in the head of the tube .

[Pocster]

So I’m going to use a standard phone charger to a usb step down I.e to 3v . Wire it into a zigbee door sensor . Then wire dry contacts from reed switch to alarm panel . This should get reliable HA in event of the alarm .

Its just the pressure sensor - might take a punt .

[Pocster]

Great website !

 

https://www.silicon-ark.co.uk

 

I found 

https://www.silicon-ark.co.uk/PSF100A-0-5-Pressure-switch-by-multicomp?search=Pressure

 

 

 

 

[Pocster]

Got the alarm type box - seems good .

Tested with the pressure switch - think it will work . I soldered to the pressure switch and busted it 🙄 ; getting a new one and will crimp . Assume heat melted the diaphragm maybe ?

Opened up the zigbee relay - no chance of soldering anything as microscopic. So will get a mains powered zigbee relay with dry contact support .

[Pocster]

Success !

The alarm box presumably to save power will only audible alarm for 10 seconds . But with the zigbee dry contact input I get HA to get voice assistant to repeat 10 times to annoy and a notification to my phone .

[Pocster]

It seems to work ( in test mode ) pretty good . So as a final test ; put it under the sink . Turn off pump and let tap run ( I preliminary tried this before and it worked ) . So not expecting any issues . (expletive deleted) you Saniflo for your bullshit crap alarm junk 

[Pocster]

Ok ! Almost works in situ 

The pressure switch is WAY too sensitive. I tried during the tube length it sits in etc - but it triggers when the pump is in normal use . Ordered a less sensitive version 

[Pocster]

Altering the tube length ….

[Pocster]

What a rabbit hole I went down ! Purchasing various pressure sensor switches and sending them back . Too sensitive / not sensitive enough etc .

In the end butchered the saniflo dry contact switch - answer was staring me in the face 🤣.

Added some tube to vary the sensitivity and it seems good .

Triton alarm loud enough ( but automatically seems to stop when it wants on the audio ) . But triggers HA aswell ; gets voice to talk and a notification to my phone .

So that’s a win ! 👍

[Pocster]

Installed and functional 👍

[Pocster]

Inspired by my success I want a similar system but for when the outdoor rainwater pump fails and also the not in use yet sewage pump ( for swmbo’s tiny underground wc ).

So 1 control box ( as before ) but 2 float / lever devices trigger the alarm but also HA though using WiFi as no zigbee outdoors .

The very fiddly Shelly uni does the trick . But those (expletive deleted)ing hair thick wires…. 
 

oh yeah - needed 2 dry contact inputs - which seems to be a big ask 

Edited August 12 by Pocster
My PIN code 5734

[Stu789]

If you are wanting to monitor liquid levels in a tank/inspection chamber then a ME201WZ Level Sensor might be of interest - can get wifi and zigbee versions, EG here

I'm looking at this for monitoring rainwater tank level.

[Pocster]

2 hours ago, Stu789 said:

If you are wanting to monitor liquid levels in a tank/inspection chamber then a ME201WZ Level Sensor might be of interest - can get wifi and zigbee versions, EG here

I'm looking at this for monitoring rainwater tank level.

I’ve got another project using water proof ultra sonic transducers linked to an esp32 - works really well . The device you link to might be worth a punt . Be keen to know how you get on .

Edited Friday at 12:01 by Pocster