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  1. #21
    Senior Member Rank = Jussai Tom Koi's Avatar
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    Quote Originally Posted by JimJones View Post
    Hi frimley

    does the macerator switch on and off as waste flows through it then stop when the drum cleaning cycle stops?

    thanks

    Jim

    Hi Jim, a saniflo macerator type waste pipe works as soon as it senses its full, if you got water/waste constantly running the pump will continue to run, although in that scenario the pump won't last very long.

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  3. #22
    Senior Member Rank = Jussai Tom Koi's Avatar
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    Quote Originally Posted by Frimley Koi keeper View Post
    Only thing is you have to fit an NRV on the outlet if like me you have to pump up and over something or the water flows back from the waste and triggers the pump again and again and again etc etc. Just found that out on mine so will see what happens when I fit the NRV
    There's normally a mechanism inside the housing just on the outlet that's got a rubber flap that stops water back feeding?

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  5. #23
    Senior Member Rank = Rokusai JimJones's Avatar
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    if thats the case then great. i could sit one of these perfectly level on the ground in my multi-bay area ( not in the sump pit)

    the waste pipe is 2 m before it has to go vertical before in goes under the lawn ( my pond is ground level so the filter area is under the decking). I think then this would prevent the perpetual backwash?

    thanks again --- these replies have really changed the way I have been looking at this.

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  7. #24
    Senior Member Rank = Jussai Tom Koi's Avatar
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    Quote Originally Posted by JimJones View Post
    if thats the case then great. i could sit one of these perfectly level on the ground in my multi-bay area ( not in the sump pit)

    the waste pipe is 2 m before it has to go vertical before in goes under the lawn ( my pond is ground level so the filter area is under the decking). I think then this would prevent the perpetual backwash?

    thanks again --- these replies have really changed the way I have been looking at this.
    Check the instructions before buying, I think the the outlet has to rise a particular height before it can go horizontal, I can't remember now as its been a few yrs since I worked on one.

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  9. #25
    Extreme Koi Member Rank = Supreme Champion Frimley Koi keeper's Avatar
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    Sorry for the late reply I didn't get home till gone 10 last night.

    That looks more substantial than the one I got so good luck with it. If they did a 40mm version I would get one too

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  11. #26
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Frim,

    Had mine delivered today. There already is an NRV in one of the white connections, but if you do the jubilee clip up too tight it doesn't work.

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  13. #27
    Extreme Koi Member Rank = Supreme Champion Frimley Koi keeper's Avatar
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    I'm pretty sure mine didn't have an NRV in either of the two white connectors but I thought there was a flap thing attached to the top inlet but I thought that opened inwards I will have a look later as getting the lid off is a bit of a bugger and I want to fit a big jubilee clip on the lid to make it seal better as I think one of the clips isn't fitting properly but then again I think there is a hole in the top of the lid anyway just above the outlet?

  14. #28
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    The lid doesn't seal particularly well when you've got the weight of 500 litres behind it from the Nexus.

    There is a flap that prevents back flow but it doesn't close properly if you push the pipe fully home on the outlet and do the jubilee clip up too tight.

    There's a hole in the top of the lid but that seals quite well by itself when the unit is full.

    Discovered today that the motor overheats and shuts off if you try and do a full water change through the unit. Its fine for the first 350 or so litres but after that it cuts out and back in again every 100 litres or so.

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  16. #29
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    Quote Originally Posted by RS2OOO View Post
    The lid doesn't seal particularly well when you've got the weight of 500 litres behind it from the Nexus.

    There is a flap that prevents back flow but it doesn't close properly if you push the pipe fully home on the outlet and do the jubilee clip up too tight.

    There's a hole in the top of the lid but that seals quite well by itself when the unit is full.

    Discovered today that the motor overheats and shuts off if you try and do a full water change through the unit. Its fine for the first 350 or so litres but after that it cuts out and back in again every 100 litres or so.
    Well it is only designed for toilet flushing or showers etc so 100 litres would be one hell of a flush even for a chicken vindaloo clear out

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  18. #30
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    I will have to have another look at the outlet fitting then as I am fairly sure there wasn't an NRV on mine but at the time of fitting I didn't know to look for one.

  19. #31
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Quote Originally Posted by Frimley Koi keeper View Post
    I will have to have another look at the outlet fitting then as I am fairly sure there wasn't an NRV on mine but at the time of fitting I didn't know to look for one.
    Same here, did something pretty silly as it happens.

    Test fitted all the pipes and was happy so put it in the filter pit and tightened everything up and it didn't work.

    Scratching my head for ages, had the thing in bits, stuck a plug on it so I could try and figure out the problem without traipsing in and out of the filter pit.

    Still nothing.

    Removed all the pipes from it ready to box it up and send back, then realised I'd not cut the blanking plug off the inlet pipe lol. No wonder it was bone dry inside ha ha.

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  21. #32
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    Quote Originally Posted by RS2OOO View Post
    Same here, did something pretty silly as it happens.

    Test fitted all the pipes and was happy so put it in the filter pit and tightened everything up and it didn't work.

    Scratching my head for ages, had the thing in bits, stuck a plug on it so I could try and figure out the problem without traipsing in and out of the filter pit.

    Still nothing.

    Removed all the pipes from it ready to box it up and send back, then realised I'd not cut the blanking plug off the inlet pipe lol. No wonder it was bone dry inside ha ha.
    Have you got the same unit as me as it sounds different with the NRV and the end cap etc?

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  24. #34
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    Quote Originally Posted by RS2OOO View Post
    That looks like the same one I have but then I paid £74.99 for it like the one below on the same advert but can't see why they are 2 different prices for the same thing from the same company with out looking at the full adverts

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  26. #35
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    It was 74.99

    They dropped the price today.

  27. #36
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    Sounds about right

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  29. #37
    Senior Member Rank = Rokusai JimJones's Avatar
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    is that the one to buy RS ?

    cheers

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  31. #38
    Senior Member Rank = Rokusai JimJones's Avatar
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    Just ordered one now. Will let you all know how i get on.

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  33. #39
    Extreme Koi Member Rank = Supreme Champion Frimley Koi keeper's Avatar
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    Quote Originally Posted by JimJones View Post
    Just ordered one now. Will let you all know how i get on.
    Good luck with it, be good to see how you get on with the NRV issue Jim

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  35. #40
    Senior Member Rank = Rokusai JimJones's Avatar
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    thanks Ill be doing a post on my draco install soon so once everything is in place I'll let you know

    thanks

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