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Results 16 to 30 of 31
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20th March 2024, 06:29 PM #16
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FYI the outdated method I refer to was a coupled connection to a 40mm, or larger, trapped standing-wastepipe. This comprised of a barbed fitting screwed into bush with holes drilled in it, to prevent being totally sealed.
It is not often that a diswasher is discharged above a tundish. Especially in a domestic installation.
The legal height of air gap for a discharge pipe above a tundish is 25mm.
Then again you would know this.
I find your comment of the asking the lady from bunnings quite insulting.
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20th March 2024, 07:32 PM #17
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For many years I had the coffee machine drain connected to just above the sink trap using a 2.5m length of hose (red line). The hose went through a hole in the bench top and followed a very shallow (5º) run behind the dishwasher to the sink cupboard - the shallowness of this run repeatedly blocked this hose by the small amounts of coffee grounds over time settling out. This was at times a nightmare to unblock and I even had to occasionally use compressed air to unblock the drain hose.
CMdrain.jpg
When I got my new coffee machine I connected the drain to a 1.5m long 20 mm Black poly which dropped through the same hole in the bench top, and then vertically down through a kitchen cupboard and wooden floor n (purple line), into the basement under the kitchen. Here there is a 20 mm black poly right angle bend connected in turn to a 2.5m length of black poly that slopes at an angle of about 30º down to and connects to the sink waste line under the kitchen. With this degree of vertical drop the grounds are easily carried to waste even by the small amounts of drain water output by the coffee machine.
I realize none of this is probably "legal" but it works, no blockages and no discernible smell.
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20th March 2024, 07:42 PM #18
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As long as you're happy with it Bob, I ain't telling anyone.
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20th March 2024, 09:17 PM #19
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20th March 2024, 09:19 PM #20
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20th March 2024, 09:21 PM #21
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20th March 2024, 09:34 PM #22
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I've had another thought.....
What if I add 2 more P Traps under both bowls?
It complicates the pipework, but It apears to solve both problems.
Fumes and DW noise.
Thoughts?
Steve
20240320_182733.jpg
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20th March 2024, 10:50 PM #23
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Do not do this. Double trapping is an absolute no no. Gee 2 plumbers with no results. What tests did they carry out?
1- check the nipple/barb on trap is clear and has been drilled out to the total bore.
2- check the hose hasn't been squashed or kinked. This may involve pulling the d/w unit out completely.
3- check the impeller on the pump in base of d/w if possible, for foreign objects.
4- consider contacting the supplier/manufacturer , you may have a lemon.
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20th March 2024, 11:33 PM #24
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21st March 2024, 08:50 AM #25
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21st March 2024, 09:41 AM #26
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21st March 2024, 12:25 PM #27
That is illegal if there is no s trap at the point of connection. Nothing to stop vermin (cockroaches) from travelling up it regardless of how often you use and flush it but more importantly the bacteria that breeds in any black or grey water drain will eventually contaminate your machine especially if your are away from home for an extended time ie: holidays, medical problems.
The person who never made a mistake never made anything
Cheers
Ray
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21st March 2024, 01:58 PM #28
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21st March 2024, 02:10 PM #29
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21st March 2024, 08:15 PM #30
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