LPG tank below water table, alternatives?

Scottish_Dorset

Hi all,

Looking for help and suggestions.  We bought our rural semi-detached house 3 years ago.  It was built by a small developer, group of three houses, who rented it out for a couple of years until we bought it.  Was built in 2017.  Heating is done by an underground LPG gas tank (Calor).  We bought the house in summer but each winter/spring/wet summer, the tank has flooded, up to the inside start of the turret.  We have bought a pump but that is temporary solution.  When the houses were being built, they were going to have oil heating but the developer must have changed his mind.  

Can we go back to the developer to get this sorted?  The other two houses also have the same problem but not to the same extent as we have, we are the middle house.  Or should I look at changing the form of heating altogether, such as Octopus heat pump.  They are currently quoting around £1K to do this.  Causing me a lot of angst!

Netexporter

I'd go for a heat pump. Whether Calor actually remove their tank is another matter. I've been waiting a year for them to remove the one in my garden.

Scottish_Dorset

Netexporter said:

I'd go for a heat pump. Whether Calor actually remove their tank is another matter. I've been waiting a year for them to remove the one in my garden.

Is your one an underground tank?  Do they re-landscape it?  I will have a gapping hole if they remove it!

Sorting_Hat

Underground tanks can be fitted raised up so the turret/regs etc  are clear of the water table then the ground is mounded up to the tank so its under a  hump.  

Scottish_Dorset

Sorting_Hat said:

Underground tanks can be fitted raised up so the turret/regs etc  are clear of the water table then the ground is mounded up to the tank so its under a  hump.  

Yes but sadly our tank has already been fitted, looks like the ground may have sunk over time as the garden gently slopes down to that area.  When it rains, this adds to the collection of water from the water table.

Sorting_Hat

Scottish_Dorset said:

Sorting_Hat said:

Underground tanks can be fitted raised up so the turret/regs etc  are clear of the water table then the ground is mounded up to the tank so its under a  hump.  

Yes but sadly our tank has already been fitted, looks like the ground may have sunk over time as the garden gently slopes down to that area.  When it rains, this adds to the collection of water from the water table.

Yes, so the tank can be excavated/exposed and removed and if undamaged re-fitted or a new tank installed as described.

Kiran

Scottish_Dorset said:

Sorting_Hat said:

Underground tanks can be fitted raised up so the turret/regs etc  are clear of the water table then the ground is mounded up to the tank so its under a  hump.  

Yes but sadly our tank has already been fitted, looks like the ground may have sunk over time as the garden gently slopes down to that area.  When it rains, this adds to the collection of water from the water table.

Does the land fall toward the tank and then carry on after the tank. If so a French drain to diver water away from the tank to lower ground would be a solution worth investigating. Do you have a photo of the tank/ area where you get water ingress?