Thanks for the ideas. I used my dinghy foot pump to blow out the vent on
the port tank, which resulted in increased flow from that tank. I think I
need to replace the senders in both tanks to get accurate readings on tank
levels. Neighbor on the dock suggests a Tank Tender. Any suggestions?
Peter McMinn
_/)
On Wed, Mar 24, 2021 at 6:32 AM Bill Coleman via CnC-List <
cnc-list@cnc-list.com> wrote:
> This sounds likely – My usual fix for fixing the prime in the water pump
> in the spring was to bring a hose on board and blast water into the tank
> drain, up to the faucet – this would also blast over to the other tank, and
> likely blow out whatever crud was in the line. Then vacuum out that tank
> and clean.
>
>
>
> Bill Coleman
>
> Entrada, Erie, PA
>
>
>
>
>
>
>
>
>
> Something is preventing the free flow of water from one of the tanks. It
> could be;
>
> - a clog in the hose from the tank to the tee,
>
> - maybe a valve, somewhere in that line that is closed,
>
> - it could be the vent is plugged solid, creating a vacuum. Which does
> not allow the water to flow.
>
>
>
> Given that there is very little head pressure to overcome the vacuum, it
> wouldn't necessarily take too much of a plug on either side to stop the
> water flow.
>
>
>
> Danny
>
> ---------- Original Message ----------
> From: Rick Brass via CnC-List <cnc-list@cnc-list.com>
> To: "'Stus-List'" <cnc-list@cnc-list.com>
> Cc: Rick Brass <rickbr...@earthlink.net>
> Subject: Stus-List Re: water tanks interconnected, or not?
> Date: Tue, 23 Mar 2021 23:37:40 -0400
>
> My 38 also has a tank under the port and starboard settees. Each of the
> tanks has a shutoff valve at the outlet. The two drain hoses meet at a T
> under the floorboards, and from this T is the line to the pressure pump.
>
>
>
> Curiously, there is also a shutoff valve on each side of the T. I could
> see no good purpose for the second shutoff in each supply line (unless it
> was there to stop all the water from leaking out through a broken line), so
> I left them in place when I replaced the hoses a while back.
>
>
>
> Maybe you have an arrangement like this one?
>
>
>
> Rick Brass
>
> Washington, NC
>
>
>
>
>
>
>
> *From:* Adam Hayden via CnC-List [mailto:cnc-list@cnc-list.com]
> *Sent:* Monday, March 22, 2021 7:14 AM
> *To:* Stus-List <cnc-list@cnc-list.com>
> *Cc:* petemcm...@gmail.com; Adam Hayden <hayden.a...@hotmail.com>
> *Subject:* Stus-List Re: water tanks interconnected, or not?
>
>
>
> Peter
>
> Very interesting. I have the same issue except my port tank drains and
> the Starboard tank does not.
>
> Drives me crazy.
>
> Adam c&c 36
>
> Sent from my Bell Samsung device over Canada’s largest network.
>
>
> ------------------------------
>
> *From:* Peter McMinn via CnC-List <cnc-list@cnc-list.com>
> *Sent:* Monday, March 22, 2021 3:55:08 AM
> *To:* cnc-list@cnc-list.com <cnc-list@cnc-list.com>
> *Cc:* petemcm...@gmail.com <petemcm...@gmail.com>
> *Subject:* Stus-List water tanks interconnected, or not?
>
>
>
> I have a 30gal water tank under both settees. The valves for each are set
> to open flow. However, the pump seems to draw only from the starboard side.
> I’d assumed that with both valves open, the tanks would equalize, but the
> stbd tank empties and the pump goes dry, while the port tank remains full.
> Can someone venture to what’s going on? I’ve read this 2015 discussion
> <https://cnc-list.com/empathy/thread/2KB2NSDGELMQQJSRMPPWPHVMCWQJ2ICR?hash=SLQZNGDWP5TUBYWW6HFGKHJT5DVCWB5F#SLQZNGDWP5TUBYWW6HFGKHJT5DVCWB5F>,
> but the OP then was interested in disconnecting the two tanks. I’ll do some
> exploring tomorrow to see what might be preventing the tanks from
> equalizing. Ideas are welcome.
> Thanks to all of the subscribers that contributed to the list to help with
> the costs involved. If you want to show your support to the list - use
> PayPal to send contribution -- https://www.paypal.me/stumurray Thanks
> - Stu
Thanks to all of the subscribers that contributed to the list to help with the
costs involved. If you want to show your support to the list - use PayPal to
send contribution -- https://www.paypal.me/stumurray Thanks - Stu
