Quietest lifting station for shower and sink | Showers and Wetrooms Advice | Plumbers Forums

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Quietest lifting station for shower and sink

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Discuss Quietest lifting station for shower and sink in the Showers and Wetrooms Advice area at Plumbers Forums

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keystroke

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A drain pipe was installed many years ago with the incorrect slope so it was recommended that I install a Saniflo Sanishower Flat. The specs say 45dB so I found the Sololift2 Grundfos D-2 which comes in at 40dB and also allows hotter water though, 50C, and seems to perhaps require less maintenance. My plumber said this should also work based on my setup. But I'm wondering if anyone knows of any quieter models out there or has any other advice for keeping these things running quiet. I don't have to pump very high so all of this seems overkill. I would rather not even use a pump but it would require vast changes and be very difficult to fix the issue otherwise according to my plumbers.

Thanks!
 
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@rpm is your man to ask I’m sure he will be along later to advise
 
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keystroke said:
it would require vast changes and be very difficult to fix the issue otherwise according to my plumbers.
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Might be worth consulting a groundworks/drainage specialist and getting an actual quote. Domestic plumbers often don't want to do this type of work and can be overly negative.

It'll be fairly expensive but it's a one off cost and you'll soon forget about the pain. The pump, however, will require maintenance and will annoy/disturb you every time it fires up until it eventually drives you mad and you decide to move. At at point the purchaser knocks the cost of fixing the drain off their offer price so you end up paying anyway!
 
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Chuck said:
Might be worth consulting a groundworks/drainage specialist and getting an actual quote.

It'll be fairly expensive but it's a one off cost and you'll soon forget about the pain. The pump, however, will require maintenance and will annoy/disturb you every time it fires up until it eventually drives you mad and you decide to move. At which point the purchaser knocks the cost of fixing the drain off their offer price!
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o_O I give up! :rolleyes:
5 words r
 
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Haha well I'll put the pump in the other room so it'll be behind a wall and I won't be able to hear it. Just determined that was possible. Only issue then is maintenance! I'm renovating lots of stuff so I'll stick with the pump for now. Never had one so will see how it is. Thanks!

PS RPM disagrees?
 
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keystroke said:
Haha well I'll put the pump in the other room so it'll be behind a wall and I won't be able to hear it. Just determined that was possible. Only issue then is maintenance! I'm renovating lots of stuff so I'll stick with the pump for now. Never had one so will see how it is. Thanks!

PS RPM disagrees?
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That's fine as long as you can get the shower to drain and Im sure there is video out there somewhere re maintenance.
* Only when claptrap is posted *
 
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rpm said:
Either pump will do, doubt if you would notice a 5db difference tbh. Keep off hard surfaces.
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The dB scale is logarithmic so a 10dB increase in sound level would be perceived as twice as loud so assuming both figures were true you'd expect to hear some difference.

keystroke said:
Does anyone have any advice? Unfortunately this needs be decided so anything is useful. I'll try to send a message to rpm as well. :) Thank you!
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The sound power generated by the pump is only half the story, lower frequency (deeper) sounds tend to travel further than high frequency (high pitched sounds). If the manufacture doesn't provide a frequency plot you can use pump speed as an indication (lower speed = lower frequency)

How you mount the pump will make a big difference, if its in contact with anything like pipe of floorboards they will tend to transmit the sound about the house. Speak to the manufacturer about anti vibration mounts if they don't supply you'll pick them up with a google search.

As others have said finding a fix that doesn’t need a pump would be a better answer. Hair and soap scum tend to foul pump impellers over time.
 
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It`s a 5db not a 10db difference and still maintain the average Joe would struggle to hear the difference, more so if they were taking a shower at the time and yep the rest is pretty much already covered. Pump speed is pretty much the same which might have something to do with fact that last time I looked they had the same motor. :D:cool:
 
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keystroke said:
Do you know what antivibration mounts are recommended for the 40dB pump? The installers insist it isn't a problem but they're wrong! So gotta advise.
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Doesn't need to be anything fancy, you'll find high modulus anti vibration mounts from the usual scumbags.

With something like that I've get a couple of squares of moisture resistant MDF slightly bigger than the pump.

Screw the first to a solid surface, attach the second piece to the first with the anti vibe mounts. fasten the pump to the second piece.

s-l300.jpg
 
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keystroke said:
A drain pipe was installed many years ago with the incorrect slope so it was recommended that I install a Saniflo Sanishower Flat. The specs say 45dB so I found the Sololift2 Grundfos D-2 which comes in at 40dB and also allows hotter water though, 50C, and seems to perhaps require less maintenance. My plumber said this should also work based on my setup. But I'm wondering if anyone knows of any quieter models out there or has any other advice for keeping these things running quiet. I don't have to pump very high so all of this seems overkill. I would rather not even use a pump but it would require vast changes and be very difficult to fix the issue otherwise according to my plumbers.

Thanks!
Click to expand...
The collective wisdom on here says put the pump on a paving slab on a rubber mat and then see if this helps before you change the pump set. centralheatking
 
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