Quote: (Originally Posted by
iani)
The first two batches of units had a scrubber dome that was manufactured by another company, these domes seem to distort and this has led to a number of floods. From the third batch of units the domes have been made in house and supposedly don't distort so much, mine has distorted by 1mm apparently and this is "well within specification".
Ian
In defense of the engineering company who machined the parts. I recall taking with them last year about the poor choice of material. The material chosen by them and used in production is well known to be prone to dimentional instability and stress concentrations due to loading imbalance and to stress cracking in salt water. It would be of great interest if as you say that 1mm is within tolerance what they suggest is the maximum allowable tolerance allowed. I trust you get this in writing.