Heating oil tank leak.

Cowabunga

Member
Location
Ceredigion,Wales
Replace the tank. If a farm tank rather than domestic, it needs replacing with a bunded tank to pass farm assurance regardless of condition. If domestic then again is it worth risking a major leak and paying for the loss of expensive oil plus the probable high clean-up cost? A new domestic tank must be bunded also.

I replaced two 3500litre tanks in fair condition with two fuel stations earlier this year. A 3500 litre and a 2500 litre. They cost about £5k + VAT after including a new concrete base and professional wiring with armoured cables, but that is just a mostly unavoidable long term cost of doing business. I would have kept the old single skin gravity fed tanks for another year or two if not for farm assurance, but they would inevitably have needed changing within two years because the sun was taking its toll.
 

Cowabunga

Member
Location
Ceredigion,Wales
Wont make any difference, those tanks only have a 1year guarantee now, have seen loads split over the years, temperature differences cause the splits, if you need to have a tank outside, get a bunded one.
I believe that bunded tanks are now legally required for both new commercial and domestic fuel stores. Delivery drivers are now very iffy about filling single skin tanks and indeed about climbing any ladder, however short, to top fill.
 

chickens and wheat

Member
Mixed Farmer
My mates tank cracked,not due to sunlight but because the footing for the base was poor,this dropped one end of the tank slab bending the tank very slightly leading to a stress crack .
A bar of soap fixed it until oil could be pumped out
He noticed the leak when arriving home from holiday, the inside of house smelt of kero.
New build house less than 10 years old,. He later learnt that just about every other house on the new block had been through same problem, pathetic footings from a 'high end' building company
 
Happened to a house 100 yds up the road. Oil seeped into next doors garden & under their house. Then managed to penetrate their (plastic) water supply pipes & contaminate their drinking water (would never have believed this to be possible). On bottled water for over a month until new supply installed: kitchen cabinets all had to be ripped out, floor dug up ... a right mess, but finally sorted.

Then had my (single-skin) domestic tank crack when away on holiday. Fortunately said (Unfortunate) neighbour was keeping an eye on the house, smelt the leak & spent a day pumping contents into 45 gal barrels. Now have a new bunded plastic tank. Not going back to steel because had one of them rot out from the inside prior to the last plastic one. It shouldn't be Rocket Science to design & manufacture an external oil tank which lasts more than 15 years ........ But Soap can temporarily stop-up a leak in a cracked plastic tank in an emergency .... within reason :rolleyes:
 
Our neighbour had this issue. A pipe leaked and fuel got under the house. Followed along pipelines and any other place it could get.
The house was nearly getting demolished. The owner wished it had in the end after all floors were removed. Footings removed and then underpinned. All plaster removed and lots of internal brickwork. Went on for many months.
My mate had this issue. Fortunately for him,his oil suppliers were
implicated, and their insurers stood for major reparation works around his and his neighbours barn conversion. Must have have cost tens of thousands of pounds! :(
 

Farmer Roy

Member
Arable Farmer
Location
NSW, Newstralya
The sun just destroys the plastic

I replace oil tanks as a job… I’ve seen the inner tank on bunded tanks (above the oil line and never seen sunlight) catastrophically fail on 10 year old tanks yet seen sound 30 year old plastic tanks. Crap plastic is the issue !

the sun is very hard on plastics - I should know - but anything designed to be outside or in sunlight, especially something bearing a load like a liquid tank & even more with a tank holding a flammable liquid, should be made from the appropriate plastic

if the plastic is getting crumbly or flaky, the UV is breaking it down & the wrong material was used. If the tank has split along a seam or moulding, then it is a manufacturing fault. Both of these problems are the fault of whoever built the tank

As for UV, I have 2 x 1000 gallon plastic water tanks that are at least 30 years old, 2 x 5000 gallon plastic tanks that are 25 yrs old, a 10,000 gallon plastic tank that is 20 years old & a collection of various spray tanks / tractor nose tanks etc, that have survived the worst that the Australian sun can through at it

plastic diesel cartage tanks of 400 / 600 l are also very popular here for carrying fuel out to the paddock on the back of a Ute & I’ve never heard of any issues with them either


so yeah, either just bad luck, or a sh!t tank manufacturer. . .
 

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