For ease of installation, fit one cylinder in first, and then the other; fitting in both at the same time can be difficult.
Andreas Loewe, dean of St Paul's Cathedral, said the installation was fitting because St Paul's had always been "a place of advocacy for refugees".
While the current range of seats were found to offer sufficient protection irrespective of weight, the researchers stressed that either improper installation or fitting would reduce a child's safety in the event of a crash and urged parents to review the most recent guidelines set by the American Academy of Pediatrics.
By April 2014, the exterior elevator shaft was being removed, podium glass, interior decorations, and other finishings were being installed, and installation of concrete flooring and steel fittings was complete.
Installation of a close-fitting polymeric thin-walled lining is now standard practice for the rehabilitation of deteriorating gravity pipes.
Renovation of these pipes can be undertaken at low cost and with minimal surface disruption by installation of a close-fitting polymeric liner, most commonly by the 'cured-in-place pipe' technique.
The lamination is cured in vacuum sealed bags before final fitting and installation, a technique borrowed from aircraft construction.
As his only free-standing permanent installation, it is quite fitting that it is located at a museum that is dedicated to the intersection of art and architecture, The Chinati Foundation in Marfa, Texas.
There is a frenzy of wacky light fittings, of playground installations, of seats, tree species, sculptural lumps of granite, kiosks, railings and coloured surfaces.
