I bought a toilet bidet worth $20+ on eBay. To my surprise, the diverter knob only makes me use one of either the flush or the bidet. So I have to use the diverter switch all the time.
Why don't they just sell bidets with tee connectors or a diverter that only shuts off the bidet?
No way, they said $20+
My one came with a T connector - but I made sure of this when purchasing and looking at the pictures of items included in the sale.
Unfortunately, I'd say it's just a case of lack of awareness or information on your end. It's not fair to say 'they' and 'them' as the reason for your current situation.
I'm actually curious on the reason why these diverters exist? Rather than just plain Tee connectors. Kind of looking at technical reasons. I'm really not blaming anyone.
Why don't they just sell bidets with tee connectors or a diverter that only shuts off the bidet?
They do sell them. You just didn't buy one like that…
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Any reason why it is mostly diverters with switch?? Who wants to have a switch anyway? That's what I'm curious about actually.
Most likely due to the water pressure in Australia being higher than some of the countries where these are made, the intention is that you don't leave it pressurized all the time which can cause a leak or burst hose. The other option is to use a pressure reducing valve but this is likely to cost more than the bidet.
Also I'm not a plumber but pretty sure that for the installation to be compliant they need to have a dual check backflow prevention valve which often doesn't come included.
I think I found the problem chief.