Air vents

[Eddie J]

Hi all,

I seem to be having a problem with pump out at the moment, my tanks are vented with the Vetus no smell venting system using the 38mm pipe to the filters, when I went to pump out last week it appeared a vacuum was being created as the pump out hose started kicking violently after a while. After stopping pumping and removing the hose from the hole then reinserting and commencing pumpout again waste would be removed until the hose started kicking once more, has anyone any idea of what may be happening.

Thanks in advance

Eddie J
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[subs-4]

-----Original Message-----
I seem to be having a problem with pump out at the moment.........

This sounds similar to a problem I have had with a newly installed grey
water tank.  The installers vented the tank through an activated carbon
filter (there own design - not a proprietary product) to a vent on the
outside wall of the saloon.  They did not fit a weather cowl over the vent
with the result that the activated carbon got very wet and became
practically impervious to the passage of air (out when the tank fills or in
when it is pumped out).  The problem was most noticeable on pumpout as the
pump moves about 500L of 'water' in 20 minutes.

I solved the problem by extracting the carbon and drying it out in a low
heat oven (it seems to have retained its smell deadening properties) and
fitting a weather cowl.

Hope this helps

John Abram
MV Ella





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[Eddie J]

Hi John, I checked my filters and they are dry, the pipes that exit through
the side of the boat are an upside down U configuration so no water ingress
possible there, I find it all a bit of a mystery I must admit.
I also have a hydrophore pump where the motor sometimes sticks on and I have
to unplug from the main supply to stop it running, are these servicable
items or does it mean new kit, at the moment I can find no one that deals
with hydrophores.

Eddie J


----- Original Message -----
From: "subs" <subs@...>
To: <DBAMAIN@...>
Sent: Friday, October 03, 2008 9:59 AM
Subject: Re: DBAm: Air vents

> -----Original Message-----
> I seem to be having a problem with pump out at the moment.........
>
> This sounds similar to a problem I have had with a newly installed grey
> water tank.  The installers vented the tank through an activated carbon
> filter (there own design - not a proprietary product) to a vent on the
> outside wall of the saloon.  They did not fit a weather cowl over the vent
> with the result that the activated carbon got very wet and became
> practically impervious to the passage of air (out when the tank fills or
> in
> when it is pumped out).  The problem was most noticeable on pumpout as the
> pump moves about 500L of 'water' in 20 minutes.
>
> I solved the problem by extracting the carbon and drying it out in a low
> heat oven (it seems to have retained its smell deadening properties) and
> fitting a weather cowl.
>
> Hope this helps
>
> John Abram
> MV Ella
>
>
>
>
>
> -------------------------------------------------
> Visit http://www.barges.org for info, events, to buy and sell barges or
> equipment.  ------------------------------------------------------
> You can manage your records yourself, including unsubscribing and
> retrieving lost passwords at http://www.barges.org/newsgroups#maint

--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - http://www.avg.com
Version: 8.0.173 / Virus Database: 270.7.5/1704 - Release Date: 02/10/2008
21:35


-------------------------------------------------
Visit http://www.barges.org for info, events, to buy and sell barges or equipment.  ------------------------------------------------------
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[subs-4]

-----Original Message-----
Hi John, I checked my filters ......

Eddie, sorry I think this now beyond my technical abilities.  I can only
assume that if the vent is not blocked there must be a problem on the pump
line.

As for the Hydrofor mine uses a Flojet diaphragm pump for which all the
specs and spares data is available via their web site.

Happy trouble shooting

John Abram
MV Ella



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[Mcullencho]

Eddie????????? Try Speck Pumps Uk Ltd???????? Speak to Neil on 01494 523203? He was very helpful


-----Original Message-----
From: Eddie J <edward@...>
To: DBAMAIN@...
Sent: Fri, 3 Oct 2008 2:56 pm
Subject: Re: DBAm: Air vents



Hi John, I checked my filters and they are dry, the pipes that exit through
the side of the boat are an upside down U configuration so no water ingress
possible there, I find it all a bit of a mystery I must admit.
I also have a hydrophore pump where the motor sometimes sticks on and I have
to unplug from the main supply to stop it running, are these servicable
items or does it mean new kit, at the moment I can find no one that deals
with hydrophores.

Eddie J


----- Original Message -----
From: "subs" <subs@...>
To: <DBAMAIN@...>
Sent: Friday, October 03, 2008 9:59 AM
Subject: Re: DBAm: Air vents

> -----Original Message-----
> I seem to be having a problem with pump out at the moment.........
>
> This sounds similar to a problem I have had with a newly installed grey
> water tank.  The installers vented the tank through an activated carbon
> filter (there own design - not a proprietary product) to a vent on the
> outside wall of the saloon.  They did not fit a weather cowl over the vent
> with the result that the activated carbon got very wet and became
> practically impervious to the passage of air (out when the tank fills or
> in
> when it is pumped out).  The problem was most noticeable on pumpout as the
> pump moves about 500L of 'water' in 20 minutes.
>
> I solved the problem by extracting the carbon and drying it out in a low
> heat oven (it seems to have retained its smell deadening properties) and
> fitting a weather cowl.
>
> Hope this helps
>
> John Abram
> MV Ella
>
>
>
>
>
> -------------------------------------------------
> Visit http://www.barges.org for info, events, to buy and sell barges or
> equipment.  ------------------------------------------------------
> You can manage your records yourself, including unsubscribing and
> retrieving lost passwords at http://www.barges.org/newsgroups#maint

--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - http://www.avg.com
Version:
 8.0.173 / Virus Database: 270.7.5/1704 - Release Date: 02/10/2008
21:35


-------------------------------------------------
Visit http://www.barges.org for info, events, to buy and sell barges or
equipment.  ------------------------------------------------------
You can manage your records yourself, including unsubscribing and retrieving
lost passwords at http://www.barges.org/newsgroups#maint 

-------------------------------------------------
Visit http://www.barges.org for info, events, to buy and sell barges or equipment.  ------------------------------------------------------
You can manage your records yourself, including unsubscribing and retrieving lost passwords at http://www.barges.org/newsgroups#maint