Friday, 21 June 2013

Finally connected to the water main

The connection to the water main
Yesterday (20th June) we finally got connected to the water mains. What should have been a relatively straightforward affair turned into a day and half of misery in the sun - the two hottest days of the year so far (38°C) and not good days for digging around in the yard, looking for a water pipe at 120cm depth. What happened was, when the water company installed the pipe to Harting 10 about twenty years ago, it wasn't drawn in on any plan. Nobody could remember where the pipe was. We figured that, since we knew where the water pipe was (supposedly) connected to the mains and since we knew where the water pipe entered Harting 10, we could pretty much guess how it had to cross the yard. We also remembered coming across a black plastic pipe about 100cm down when we installed the thick pipe for hot water  across the yard in March.

When the workers came to make the connection I had already dug a channel from the wall on the yard side about seven metres into the yard. This had to be done with a spade because the digger would not be able to get under the scaffolding. With the digger, the workers soon found a black plastic water pipe. A couple of minutes later, one worker turned off the main water supply on the road, I confirmed that there was no water in Harting 10 (by turning a tap on and checking that no water came out) and the other worker diligently cut the water pipe.
Connecting the (wrong) pipe
Chaos ensued. Water gushed into the channel we had dug at about 10 bar pressure, meaning it was half a metre deep in no time. The worker in the hole used a clamp to stop the flow. He was a bit perturbed to find that the water which had apparently been switched off at the mains wasn't. He connected up the pipe to our house with a t-piece nonetheless. As they were fixing up the connection to the water meter on the inside of the house, I could not get over thinking that something was wrong. I suspected that the pipe they had connected to was not the local water main at all - it was a pipe from a well. To confirm, I turned off the well water and turned on the municipal water. This should have meant that water would nonetheless come out of our water meter at pressure. It didn't. The workers accepted that this was an unlikely event to occur if they had connected to the right pipe. Hence, we now had to find the right pipe.

It was about midday at this stage, at it was blisteringly hot. We started making educated guesses as to where the pipe might be, but despite digging down 2 metres in some places, there was no sign of the pipe. I went into the party room to fix the incoming pipe to the wall, when I heard a commotion outside, where they were still searching for the right water pipe with the digger. I also noticed the light had gone out. It turned out they had hit and snapped the electric cable, knocking out the electricity in pretty much the whole locality. The energy company had to be called and spent three hours fixing the cable. In that time, we kept looking for the water pipe, to no avail. After a pretty much wasted day, the workers went home. To add insult to injury, the digger broke down because of the heat.

The thick pipe is the main municiple water line
The day after (yesterday, 20th June), the workers were back, with a new digger, a map showing where the electric cables were located, and some new ideas as to where the water pipe might be. This time we tried digging around the drive - they figured that, irrespective of how the pipes crossed the yard, they absolutely must have entered the yard through the drive. However, two hours later and a massive hole further, we still had no water pipe. The workers decided to give up and to create a new connection to the main municipal pipe rather than trying to connect to the Harting 10 pipe - which didn't seem to exist. Out on the road we quickly found the water main. From the party room (where the water meter is) they used a hydraulic rocket to shoot out underneath the house. The rocket emerged exactly under the foundation (100cm deep) right next to the hole we had dug on the road, to find the main water pipe. A perfect shot, so to speak.

A few hours later, we had water from the mains with about 10 bar pressure and a new hydrant on the street, where we can shut off the water to Harting 8 if necessary - without influencing water supply to either Harting 10 or to the rest of Harting. The workers stayed around a bit longer - they dug a shallow trench so I could install the main drainpipe to take water from the roof. They also helped to fill in the rest of the trenches dug around the yard, looking for the water pipe.

Today (21st June), Grasser finally arrived with the steel supports for the glass roof. These will also support the balcony, as soon as it goes in (after the plastering on the outside). It was about a two hour job to get them permanently installed. Now the roof should be rock solid - both to carry the weight of the roof itself and (more importantly at the moment) to "tie down" the glass roof in case wind (e.g. in a storm like last night) gets under the roof and forces it up.

The next steps for now are to get Niedermaier back to start fixing the plumbing up. We cut a hole in the roof of the party room, going all the way up to the living room. The hole will have to house numerous pipes going up and coming down. Below are a few photos of some of the things that were done in the last couple of days.

Cleaning the area around the existing drainpipe

Cutting the original drainpipe to make space for a new joint

The finished job

Sunday, 16 June 2013

Finishing up some smaller jobs

The hole down to the party room
The last couple of days were spent finishing up smaller jobs. The roof is more or less finished now (still some smaller things to be done) and we are kind of in limbo waiting for the next big job to start. What we have planned is that the windows and doors go in during calendar week 28 (starts 8th July). When those are in, the floor can be poured. Of course, for the floor to be poured, the underfloor heating has to be in. For that to be done, a couple of smaller things needed to be finished. One of those that was at the back of my mind for a while was that a hole needed to be bored from the living room down to the party room. The hole is for the heating pipe from Harting 10 to go up to the attic and for the heating pipes for the radiators (downstairs) to come down from the attic. The water pipe(s) have to go upstairs as well. Lastly, I want to install a Cat7 network down in the party room. Currently there is WLAN from Harting 10, but it is kind of shaky and not ideal - especially for music.

The other jobs that were finished were the OSB up in Sandra's "Gallery". They were half done, but Uli and I finished them on Saturday. It involved a lot of fairly tricky cutting to fit the OSB around the rafters but we got it done. Next Wednesday (19th June) at 08:00 the water company is coming around to fix up the water. They will be bringing a mini digger to do the most of the dirty work, but I had to dig a trench a metre deep and about five metres long from the house out to where we think we will hit an existing water pipe. It would be too dangerous to use the mini digger in around the house (especially because of the temporary supports for the glass roof). I dug the trench in sweltering heat. It kept falling in on me because it was very near the trench we dug back in March for the heating pipe from Harting 10 and the earth was loose.

Today (16th June) I decided to try to build up the inner leaf of the northern living room wall. The wall is 36cm thick for about the first 1.5m height. After that it is one wide brick narrower (the outer wall is obviously flush all the way up - the inner living room wall therefore has a step). It was this step that I wanted to fill up to the top so that we would have a uniform wall for plastering. We had a few piles of old bricks which needed to be used up, but only a few of them were full length bricks. Most of them were half or shorter. As well as that I have almost no sand left. I'll need to order another 5 tonnes tomorrow. This kind of work (building up walls with irregular bricks) means a lot of mortar is used.

The wall, built up to the wallplate

About half the wall is finished



Friday, 7 June 2013

Roof done (except for a couple of small things)

The south roof finished
The roof is finally finished - almost. The 'almost' is because there still are a couple of things that need to be done. A support for two satellite dishes still has to go through the roof on the south east. For that, another "thru' roof tile" is needed. Stuckenberger's workers will do it at some stage - it isn't a priority (the satellite dish for downstairs in temporarily mounted on the wall as it is and upstairs won't have a television for quite a while yet) and they can do it without a crane and without a scaffolding. Speaking of crane, it is officially gone - the owners took it away today. That is the first real sign of progress (well, apart from the roof being tiled, that is).

Where the glass roof  meets the tiled roof
Other things that had to be done in order to get the roof finished were e.g. that the 'Spengler' had to come (again). That's the guy who does things like drainpipes, eaves, cladding on the roof etc. The major job he had to do this time round was to ensure that the crossover from the main roof to the glass roof worked properly and that no water would get in there. There are always issues where a roof with a slighter slope than another meets the other roof - and even more issues where the higher roof is tiled (because of wind driven water). I was a bit sceptical about this, but looking at what the Spengler actually conjured up, it does seem as though it will hold out against the worst of weather (which we've been having here for the last couple of weeks, by the way).

And speaking of the glass roof, the glass company guy came around last Thursday. You may remember that one of the panes of glass had broken. It emerged that it was not due to too much pressure on the pane - it was due to the apprentice stupidly putting his foot through it. The same apprentice dropped his phone from our roof the same day - he got to keep the pieces. All in all, not a good day for him. Come to think of it, he wasn't there on the second day, to repair the pane. Perhaps that was the end of a promising career as a glass guy.


Niedermaier was there as well on the last day on the roof. His workers needed to drill two holes in the roof and fit the holes out with "thu' roof tiles". One hole was for the bathroom (some kind of ventilation) and the other was for the solar panels so the pipes carrying the water to the 1000L tank actually go through the roof. When I went up into the attic today I was glad to see that the hole in the roof was pretty much directly overhead the 1000L tank. This means that there is a very short distance from energy generation (the panels) to energy storage (the tank). The pipes are insulated, but from the documentation it seems that they lose power at a rate of about 10W/m - that's not much, but the shorter the distance, the less power loss. One of the next jobs is to organise with Niedermaier when he's going to come to hook up the tank with the solar panel and the tank with the heating pipe from the other house. All of that kind of work is not really dependent on anything else (except on me drilling a big hole from the first floor down to the ground floor so the heating pipe can be brought up) so can be done before or even parallel to any underfloor heating.

Network cables from four rooms - at least another five need to be done

Has to be hooked up to the WC as soon as we're ready for that kind of work

Not really ideal, but the only way to get the potentially noisy (drip drip) rain pipe to ground without going right next to a bedroom window

The snow barrier to make sure nobody below gets avalanched in winter

The pipe that carries the hot water from the solar panels. It obviously does not need to be this long