what is causing the pulsing in my water system? sur-flo pump....only using tank and pump , no outside connection. happens in either sink and with
either hot or cold
--
RM
either hot or cold
--
RM
house water system
- Thread starter ron montesi
- Start date
Erratic or defective pressure switch in the pump or overall system?
D C "Mac" Macdonald
Amateur Radio K2GKK
Since 30 November '53
USAF and FAA, Retired
Member GMCMI & Classics
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach
k2gkk + hotmail dot com
________________________________
From: Gmclist on behalf of ron montesi via Gmclist
Sent: Wednesday, July 1, 2020 16:46
To: gmclist
Cc: ron montesi
Subject: [GMCnet] house water system
what is causing the pulsing in my water system? sur-flo pump....only using tank and pump , no outside connection. happens in either sink and with
either hot or cold
--
RM
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D C "Mac" Macdonald
Amateur Radio K2GKK
Since 30 November '53
USAF and FAA, Retired
Member GMCMI & Classics
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach
k2gkk + hotmail dot com
________________________________
From: Gmclist on behalf of ron montesi via Gmclist
Sent: Wednesday, July 1, 2020 16:46
To: gmclist
Cc: ron montesi
Subject: [GMCnet] house water system
what is causing the pulsing in my water system? sur-flo pump....only using tank and pump , no outside connection. happens in either sink and with
either hot or cold
--
RM
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Ron,
I've owned 8-10 RV's over the past 60 years. They all suffered from
pulsating water pressure when running on the 12 VDC pump. I found there's
one easy way to correct the situation: Use a surge suppressing
"accumlator" (a small air-charged tank) such as: low.es/3il70VE
Just put a tee in the output line from the water pump to connect the
accumulator.
Ken H.
On Wed, Jul 1, 2020 at 5:47 PM ron montesi via Gmclist <
> what is causing the pulsing in my water system? sur-flo pump....only
> using tank and pump , no outside connection. happens in either sink and
> with
> either hot or cold
> --
> RM
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
I've owned 8-10 RV's over the past 60 years. They all suffered from
pulsating water pressure when running on the 12 VDC pump. I found there's
one easy way to correct the situation: Use a surge suppressing
"accumlator" (a small air-charged tank) such as: low.es/3il70VE
Just put a tee in the output line from the water pump to connect the
accumulator.
Ken H.
On Wed, Jul 1, 2020 at 5:47 PM ron montesi via Gmclist <
> what is causing the pulsing in my water system? sur-flo pump....only
> using tank and pump , no outside connection. happens in either sink and
> with
> either hot or cold
> --
> RM
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> what is causing the pulsing in my water system? sur-flo pump....only using tank and pump , no outside connection. happens in either sink and
> with either hot or cold
I had a Monaco Dynasty DP for a while and it did not have the pulsing in the water system because the factory installed an accumulator like Ken said.
It works like the system in a house that has a well pump.
--
Tom Lins
St Augustine, FL
77 GM Rear Twin, Dry Bath, 455, Aluminum Radiator Quad-Bag Suspension Solar Panel
Manuals on DVD
GMC Dealer Training Tapes
http://www.bdub.net/tomlins/
> with either hot or cold
I had a Monaco Dynasty DP for a while and it did not have the pulsing in the water system because the factory installed an accumulator like Ken said.
It works like the system in a house that has a well pump.
--
Tom Lins
St Augustine, FL
77 GM Rear Twin, Dry Bath, 455, Aluminum Radiator Quad-Bag Suspension Solar Panel
Manuals on DVD
GMC Dealer Training Tapes
http://www.bdub.net/tomlins/
> what is causing the pulsing in my water system? sur-flo pump....only using tank and pump , no outside connection. happens in either sink and
> with either hot or cold
Ron,
I am unsure what you mean by pulsing.
If it is very high frequency, I have seen this when a triplex or quad pump failed an internal valve. The pulse is very fast two or three times a
second.
I have seen the lower frequency like three or four seconds per pulse and that was just the natural frequency of a system with no hysteresis (dead
band) in the pumps pressure control.
That any help?
Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
> with either hot or cold
Ron,
I am unsure what you mean by pulsing.
If it is very high frequency, I have seen this when a triplex or quad pump failed an internal valve. The pulse is very fast two or three times a
second.
I have seen the lower frequency like three or four seconds per pulse and that was just the natural frequency of a system with no hysteresis (dead
band) in the pumps pressure control.
That any help?
Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
Thanks for the info.
> Ron,
>
> I've owned 8-10 RV's over the past 60 years. They all suffered from
> pulsating water pressure when running on the 12 VDC pump. I found there's
> one easy way to correct the situation: Use a surge suppressing
> "accumlator" (a small air-charged tank) such as: low.es/3il70VE
>
> Just put a tee in the output line from the water pump to connect the
> accumulator.
>
> Ken H.
>
>
> On Wed, Jul 1, 2020 at 5:47 PM ron montesi via Gmclist <
>
>> what is causing the pulsing in my water system? sur-flo pump....only
>> using tank and pump , no outside connection. happens in either sink and
>> with
>> either hot or cold
>> --
>> RM
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
> Ron,
>
> I've owned 8-10 RV's over the past 60 years. They all suffered from
> pulsating water pressure when running on the 12 VDC pump. I found there's
> one easy way to correct the situation: Use a surge suppressing
> "accumlator" (a small air-charged tank) such as: low.es/3il70VE
>
> Just put a tee in the output line from the water pump to connect the
> accumulator.
>
> Ken H.
>
>
> On Wed, Jul 1, 2020 at 5:47 PM ron montesi via Gmclist <
>
>> what is causing the pulsing in my water system? sur-flo pump....only
>> using tank and pump , no outside connection. happens in either sink and
>> with
>> either hot or cold
>> --
>> RM
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
Sure. The faucet acts like the tuning potentiometer in a feedback
Loop oscillator.
--
John Lebetski
Woodstock, IL
77 Eleganza II
Loop oscillator.
--
John Lebetski
Woodstock, IL
77 Eleganza II
