Tagged: valve
Alma Vale
06 Dec 2020
I wasn't really feeling it when I set out today, on my first car-assisted wander. By the time I'd parked on Alma Vale Road in Clifton it was just starting to rain and I picked my way about in quite a desultory way. It felt strange, as I was very familiar with the area because I'd walked through it hundreds of times when I worked at the top of Whiteladies Road, and used to walk up the hill from Hotwells and through Clifton to get there, and back again, every day.
Then a complete coincidence seemed to make the change I'd been hoping for. I was standing taking a photo of Christ in the front garden of All Saints church when a couple of people walked out of the front door. I got talking with a lady I took to be part of the ministerial team, who invited me to come in and look around—something I'd always wanted to do on the morning commute. (I think we connected a bit when I recognised the name John Piper, who did the amazing windows—I learned about him while I was at Warwick, through his connections to Coventry Cathedral.
I left with much more of a spring in my step, wandered around the area a bit more, finally working out that the tennis courts I used to pass every morning are those of Clifton Lawn Tennis Club, and finally grabbing an excellent Hungarian sausage hot dog from the Budapest Cafe. I feel a lot better now than I did before I went out.
I got interested in Bristol's medieval water supplies after poking around near Jacobs Wells Road and Brandon Hill. It was during that research I found out about a pipe that's still there today, and, as far as I know, still actually functioning, that was originally commissioned by Carmelite monks in the 13th century. They wanted a supply of spring water from Brandon Hill to their priory on the site of what's now the Bristol Beacon—Colston Hall, as-was. It was created around 1267, and later, in 1376, extended generously with an extra "feather" pipe to St John's On The Wall, giving the pipework its modern name of "St John's Conduit".
St John's on the Wall is still there, guarding the remaining city gate at the end of Broad Street, and the outlet tap area was recently refurbished. It doesn't run continuously now, like it did when I first moved to Bristol and worked at the end of Broad Street, in the Everard Building, but I believe the pipe still functions. One day I'd like to see that tap running...
There are a few links on the web about the pipe, but by far the best thing to do is to watch this short and fascinating 1970s TV documentary called The Hidden Source, which has some footage of the actual pipe and also lots of fantastic general footage of Bristol in the seventies.
On my walk today I was actually just going to the building society in town, but I decided to trace some of the route of the Carmelite pipe, including visiting streets it runs under, like Park Street, Christmas Street, and, of course, Pipe Lane. I also went a bit out of my way to check out St James' Priory, the oldest building in Bristol, seeing as it was just around the corner from the building society.
There are far too many pictures from this walk, and my feet are now quite sore, because it was a long one. But I enjoyed it.
Apparently St John's conduit is currently in working order, having been painstakingly fixed on many occasions over the centuries since 1267, including very recently, so presumably there's a tap head somewhere in the church that could turn it on and give you a taste of water from the spring all the way up Park Street.
This is quite a feat of medieval engineering, as the pipes run both down and uphill in places, using a siphoning action to carry the water back uphill around the Pipe Street area (which is, indeed, named for the original water pipe.)
I'm afraid that this is a bit of a badly-curated wander, where I mostly just popped out to find out a little of the history of Underfall Yard and poke around the various open workshops, and, in hindsight, really didn't take pictures in any kind of coherent order. So there's a lot of pictures, but they don't really tell the story that, in hindsight, I seem to have been trying to tell, of the unusual electrical substation in Avon Crescent, the Bristol Electricity that predates the National Grid but is still in use, the history of the hydraulic power house... It's a bit of a mess.
But I suppose sometimes these wanders—always chronologically presented in the order I walked and took photos—simply will sometimes be a bit of a mess. Let's hope you still get something out of it, anyway...
I guess the gearing is changed in the traditional way, by someone with a stick moving the belts across to the next diameters along. Apparently that used to be the emergency stop in the old days, too, some bloke poking at the belts with a pole until they fell off. Probably not ideal if it was to stop someone being sucked into the mechanism...
Insert your own joke here. This little room at the end of the workshop housed the boiler and the steam engine from when every single bit of large equipment ran from the belt drive system. It must have been absolutely awful to work in.