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Thread ID: 110687 2010-06-28 06:42:00 Water Tank Saga Cicero (40) PC World Chat
Post ID Timestamp Content User
1114178 2010-06-29 01:51:00 Was the Tank made locally? as others may have had the same problem
To me it looks like a UV problem but being 5 years old probably not

Their has been a few Rotational molded tanks on Dairy farms that have let go,believe some have had manufacturing faults,thats why ask around

What does your Insurance company say?
Lawrence (2987)
1114179 2010-06-29 02:02:00 Was the Tank made locally? as others may have had the same problem
To me it looks like a UV problem but being 5 years old probably not

Their has been a few Rotational molded tanks on Dairy farms that have let go,believe some have had manufacturing faults,thats why ask around

What does your Insurance company say?

I assume it is made locally by Skellerup.

The question seems to be,how do I convince Skellerup that it is a design fault or maybe as you say UV problem.
At this stage they appear to want to duck problem(or is that swan).
Cicero (40)
1114180 2010-06-29 07:52:00 I assume it is made locally by Skellerup.

The question seems to be,how do I convince Skellerup that it is a design fault or maybe as you say UV problem.
At this stage they appear to want to duck problem(or is that swan).

Get the plastic tested by a lab, and tell them you are doing this, and this will be at their cost, should it confirm the plastics properties have failed.

My tanks have an overflow, however, it is sealed and goes into a sump, so that would be airtight anyway. We however made sure the plumber installed it exactly to the manufacturers guidelines. Initally the plumber just used their own setup and parts, be we asked them to redo it with the manufacturers parts, so there won't be any issues with warrenty.
Surely if the pump was sucking out air from the tank, the inlet pipe would allow air to enter it still, unless it was blocked with debris, then I suppose you do have a vaccuum, especially if the vents were not allowing enough air in for some reason. My tanks don't have any ventilation holes at all. The thing is with tanks is that you do have to reguallay flush everything out, as you can even get dead birds blocking up the pipes.
robbyp (2751)
1114181 2010-06-29 08:46:00 Will consider all of the above.

I can't for the life of me see how these vents could block just at this time,when tank emptied then look perfectly clear on inspection.

i3.photobucket.com
Cicero (40)
1114182 2010-06-29 09:08:00 Were you around at the time? Was the tank as empty as you expected?

In another area I've heard of a tanker refilling from absentee owners tanks. Just trying to find a reason why someone might have been on top of the tank although the photos don't show any scuff marks from shoes.
PaulD (232)
1114183 2010-06-29 09:22:00 Were you around at the time? Was the tank as empty as you expected?

In another area I've heard of a tanker refilling from absentee owners tanks. Just trying to find a reason why someone might have been on top of the tank although the photos don't show any scuff marks from shoes.

Water is deliver at the rate of 2 cubes per day,never by any other means,than delivered by a council pipe.
Cicero (40)
1114184 2010-06-29 10:10:00 How powerful is your pump, suckwise (is there any such word?)
Hard to imagine an ordinary household pump being 'sucky' enough to overwhelm
the vents, but maybe if the pump is a High Capacity one?
KarameaDave (15222)
1114185 2010-06-29 10:16:00 How powerful is your pump, suckwise (is there any such word?)
Hard to imagine an ordinary household pump being 'sucky' enough to overwhelm
the vents, but maybe if the pump is a High Capacity one?

Thats what I thought, plus if it was you would expect whatever may be blocked in the inlet pipe, would free itself from the pressure. You may want to contact the installer, (unless you installed it yourself), as they could be liable for the replacement if it is infact not installed as per the manufacturers guidelines.

This is my tank, and there are no vents of any type on the tank www.devan.co.nz
robbyp (2751)
1114186 2010-06-29 10:22:00 How powerful is your pump, suckwise (is there any such word?)
Hard to imagine an ordinary household pump being 'sucky' enough to overwhelm
the vents, but maybe if the pump is a High Capacity one?

Pump is 1.25 HP and sucks water out of tank into house and garden.

There is no sign of any blockage,remember it emptied tank,then what happened, I know not.
Cicero (40)
1114187 2010-06-29 10:28:00 Thats what I thought, plus if it was you would expect whatever may be blocked in the inlet pipe, would free itself from the pressure. You may want to contact the installer, (unless you installed it yourself), as they could be liable for the replacement if it is infact not installed as per the manufacturers guidelines.

This is my tank, and there are no vents of any type on the tank www.devan.co.nz

According to your link
"Venting

It is essential that you have more than adequate overflow and air venting for your operating conditions. Air and water must be able to exit the tank at the combined maximum rate that it can enter."

Do you have an overflow doubling as a vent?
PaulD (232)
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