Hot water storage.

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I want to place all the hot water storage in the basement to save some place in the garage and in case of leaks the water comes in the basement and not in the garage. First thing to do, is placing a pump, to pump all the water out of the basement. I had to cut a hole in the concrete of the basement for placing a plastic box to put in the pump.

How can the water come in the basement?
Well I have build a rainwater pit in the basement of the veranda, the walls of the basement are treated with a product Torro (Thoroseal + acryl 60 from Degussa) to make them waterproof. Fact is, the walls are not completed waterproof so the walls are swaet a little bit. After 10 years this coating has corrodated, I think maybe the accid rain has to do with it, I don't know. So I dicided to coat the rain water pit again with 2 layers of Thoroseal. In the outsite walls were also few small leaks so I repaired this too..

The entry of the basement was to small to put in the wooden plates so the wall between the drinking-water pit of the compagnie and the basement entry had to cut away.
At the back the pit of the water compagnie.
Whitout this wall larger things can be placed in the basement. I hope the personnel of the drinking-water compagnie don't make a probleme of this because they were very strict for the dimensions of that pit!
I cuted a hole of 50 cm in the concrete and placed a plastic box in it. A pump with levelswitch pumps the water from the seller to the rainwater pit..
Here below the living the storage of hot water will be placed. The height of the basement is 1.12 meter.
Behind the wall on your right is the rainwater pit. 13 m3 water, enough for two months without rain.
The rain water pump.
Inside of the rain water pit after cleaning on 05/09/2006. The coating is in very bad condition.
After I put two layers of Thoroseal on the walls. I hope it wil last for 10 years again!

Six years ago I both a Stork drum at a local scrap dealer. At that time I thought already on building solar panels again. This resorvoir wil be the solar boiler.
This reservoit is 200 liters and there is a hole in it. Six copper spirals are placed in the reservoir. This solar boiler must be placed in the seller and it fits exact in the basement entry. I know it would be better to place the solar boiler vertical to have a good separation between the hot and cold water. Because I don't have enough place in the basement the solar boiler must be placed horizontaly.
First I thought to galvanize the reservoir again but it was too expensive (+-180€) and the risc of corrosion between copper and the gavanized reservoir is also a probleme. So I decided to coat the insite with epoxy epovoss BN A+B. for a total of 43 €. I coated the inside 2 times. The insite pipes are also coated. The copper pipe at the back is the hot water outlet and the pipe at the right is the cold water inlet.
The 2 holes are for the in- and outlet heat exchanger.
This is the cover of the solar boiler.
As an extra heat storage I maded a wooden box of 1.25 m x 1.25 m x 0.83 m high. Its about +- 1000 litres water. The wooden plates fit exact in the basement entry. Only the bodem plate was to big for it. The way of cutting the bottem plate makes it extra strong. The force on the wals of the box are 300 kg so it must be a very stronge box. In this box there wil be placed 3 copper spirlas (heat exchangers). One spiral for the solar panels, one spiral for the centrale heating system and a spiral for preheating the solar boiler.
The site force on the walls of the box is 300 kg, so it must be a very strong box. The wooden bodem plate is cute in two because the entry of the basement is to small. I cutted this plate like on the picture. So both pieces make the bodem plate very strong again.
All sites are mounted with aluminium profile secured with bolts and nuts.
They say the box could not hold the water but here is the proof it does!
I only have to place an aluminium grid on top to ensure the stabillity. A plastic bag must fit in the box. I ordered one in a shop were they make plastic covers for trucks.
Making a hole in the wooden case. Left for connection on a future 1000 L reservoir and right is for connecting the level gauge.
I doubt a little while to make holes in de wooden box and the plastic folie. But I decided to make the holes! The top cover will fit better with the tubes in the box.
Inside view of the hole true the wooden box.
Here the three heat exchangers. One for the solar collectors, one for the central heating and one for préheating the cold domestic water.
The wooden box with top cover, the top cover has to be cut in the middle otherwise it doesn't fit in the entry of the celler.
Me in full action!
Started with insulated the wooden box. Everything has to be done in the garage, afterwords everything must be build up again in the cralw celler.
Almost done.
Whole the box insulated with 10 cm insolation.
The bodem part is already in the seller. Now everything dismanteling and ready for building up in the seller again.
Before placing the box in the seller, a leak test to be sure that there are no leaks in the folie. Everythings seems to be oke at this moment. At this height the box has 1350 liters! Operation conditions are 1000 liters. The walls from the box are a little bit bent.

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