We just purchased a RBS30 and when I use the kitchen sink I notice that when water drains it sits right at the drain level (I can see it) even though the grey tank is not full. It hasn't caused a problem that I'm aware of but it seems odd. Have I done something wrong?
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I can see water in kitchen sink drain even though grey tank is not full.
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Originally posted by Elaina View PostWe just purchased a RBS30 and when I use the kitchen sink I notice that when water drains it sits right at the drain level (I can see it) even though the grey tank is not full. It hasn't caused a problem that I'm aware of but it seems odd. Have I done something wrong?
If the shower also drains very slowly, the issue may be related to the vent.
If the shower drains fine, there may be an issue specifically with drain in the kitchen sink. If there's a "P" trap, maybe there's debris in the line?
Honestly I'm not much of an expert when it comes to plumbing. Others will be along shortly (including Cate&Rob ) who hopefully can help.
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2017 Ford F-350 DRW, '19 315RLTSPlus
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Elaina
Hi Elaina . . . welcome to our owners technical forum.
Under the counter beside the sink is a vertical extension of the drain pipe leading up to an “Air Admittance Valve” (AAV for short). This valve is supposed to open to let the water in the drain drop to the normal level in the P trap (that you should not be able to see). I think your AAV might be stuck shut. This valve is typically only hand tight. Try loosening/removing this valve to see if this drops the water level in the sink drain. (Don’t leave it out . . . this could cause a flood under the sink!). If this solves the problem, these valves are available at Home Depot or similar.
RobCate & Rob
(with Border Collies Molly & Angel + Kitties Hazel & Elsie)
2015 Reflection 303RLS
2022 F350 Diesel CC SB SRW Lariat
Bayham, Ontario, Canada
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Originally posted by Elaina View PostWe just purchased a RBS30 and when I use the kitchen sink I notice that when water drains it sits right at the drain level (I can see it) even though the grey tank is not full. It hasn't caused a problem that I'm aware of but it seems odd. Have I done something wrong?2018 Reflection 150 Series 220RK 5th whee, Star White 2022 F350 King Ranch CC Long bed (HAL) (CCC 4062lbs), B&W 25K OEM Companion,. SteadyFast system, Trailer reverse lights, rear receiver spare tire holder, storage tube, sumo springs, Victron MultiPlus 12/120/3000, Solar, Custom 6K axles upgrade, and other modifications.
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