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 > new water pump - now water filling tank??

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Brad NSW

California

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Posted: 06/08/19 10:49pm Link  |  Quote  |  Print  |  Notify Moderator

Just put in a shurflow 4800. Now when I took up to city water, my tank fills and overflows and I get no water pressure.

The pump works great, super quiet, and great flow when I'm not on city water. Yes, the valve is turned to normal and not tank fill.

Any ideas?


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Old-Biscuit

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Posted: 06/09/19 12:33am Link  |  Quote  |  Print  |  Notify Moderator

You stated.....
On city water but no pressure inside...fresh water tank overflowing


Check your valving......something is not set up correctly

* This post was edited 06/09/19 12:52am by Old-Biscuit *


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12th Man Fan

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Posted: 06/09/19 06:18am Link  |  Quote  |  Print  |  Notify Moderator

If you have all of the fill valves in the correct position then you have a bad check valve in the pump. Some debris may be the cause.


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pasusan

Northernmost PA

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Posted: 06/09/19 06:21am Link  |  Quote  |  Print  |  Notify Moderator

Call Shurflo - we also got a bad pump and they sent me a new one that worked.


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laknox

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Posted: 06/10/19 09:31am Link  |  Quote  |  Print  |  Notify Moderator

12th Man Fan wrote:

If you have all of the fill valves in the correct position then you have a bad check valve in the pump. Some debris may be the cause.


x2 on the check valve on the pump.

Lyle


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Planning

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Posted: 06/10/19 06:43pm Link  |  Quote  |  Print  |  Notify Moderator

Brad NSW wrote:

Just put in a shurflow 4800. Now when I took up to city water, my tank fills and overflows and I get no water pressure.

The pump works great, super quiet, and great flow when I'm not on city water. Yes, the valve is turned to normal and not tank fill.

Any ideas?


More than likely the checkvalve in the pump is bad. This is very common and a repetitive issue with Shurflo pumps.

Install this on the discharge hose coming out of the pump:

https://www.amazon.com/gp/product/B000EDUTN6/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1

This model is good quality with metal (not plastic) internals.

You might need adapters to place this in line with your hose; the Shurflo pump connections are specific to those fittings so just cutting the hose and "barbing these in is easiest.

adapters like these: https://www.amazon.com/dp/B000BPECSK/?coliid=I1FX1IZI2CSVX1&colid=32BP8LZDSEKI7&psc=0&ref_=lv_ov_lig_dp_it


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Brad NSW

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Posted: 06/11/19 10:42pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks PLANNING. Parts on order. Looks like an easy fix and bad check valve makes sense.

laknox

Arizona

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Posted: 06/12/19 09:39am Link  |  Quote  |  Print  |  Notify Moderator

Brad NSW wrote:

Thanks PLANNING. Parts on order. Looks like an easy fix and bad check valve makes sense.


If you've got a NEW pump that's backflowing, why wouldn't you warrant it for another one, that works correctly, instead of bandaiding the defective one? [emoticon]

Lyle

Planning

Idaho

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Posted: 06/12/19 04:56pm Link  |  Quote  |  Print  |  Notify Moderator

laknox wrote:

Brad NSW wrote:

Thanks PLANNING. Parts on order. Looks like an easy fix and bad check valve makes sense.


If you've got a NEW pump that's backflowing, why wouldn't you warrant it for another one, that works correctly, instead of bandaiding the defective one? [emoticon]

Lyle


Because the Shurflo check valve is an historical single-point-of-failure, and a dedicated check valve is a more positive remedy not requiring repetitive repair.

laknox

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Posted: 06/12/19 08:57pm Link  |  Quote  |  Print  |  Notify Moderator

Planning wrote:

laknox wrote:

Brad NSW wrote:

Thanks PLANNING. Parts on order. Looks like an easy fix and bad check valve makes sense.


If you've got a NEW pump that's backflowing, why wouldn't you warrant it for another one, that works correctly, instead of bandaiding the defective one? [emoticon]

Lyle


Because the Shurflo check valve is an historical single-point-of-failure, and a dedicated check valve is a more positive remedy not requiring repetitive repair.


No matter. A new, and properly functioning pump is what was paid for and what should be delivered. If it fails later, then install the other valve.

Lyle

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