Yes, a dry run is possible in store where they have a wide range to test. Yet to find a store with a range set up for a more thorough test. Any way who would have the time to try them all out? The old Caroma was built for comfort and a good read ahead of style. It might be the ‘gold’ standard? Some of the newer models appear to require a fashion statement rear to match. I’m long out of fashion!
it’s simple plain good advice to try before you buy, as far as is practicable.
Perhaps if there is sufficient interest the diverse range of Choice lab staff could do a few internal surveys to determine a range of suitable test loads and identify a range of relevant test conditions.
As noted previously
A good buying guide backed up with a calibrated flush test might be all that is required. Which models do the job with a single full flush at the nominated water volume setting for all samples 8/9 out of 10 flushes. It’s the ones that repeatedly refuse to single flush some or more of the test samples that need weeding out. Some cisterns seem to let go with a hugh gusto and no result, while a modern rimless bowl takes its time and who knows?
As to durability, reliability or quality of manufacture, these are difficult to assess objectively without great effort. Common sense says a good suite should last decades with only minor attention. I know of many that have made 30, and some newer ones that did not make 5 (cistern water leaks and fill/flush mechanisms)?
If you follow the guides in any expensive home fashion magazine, then may be their advice is correct. All bathrooms and kitchens date and we should be doing a full replacement every five years to ensure our properties do not date and retain their million dollar values. (Not likely for this home!) I get to read these while waiting to see my GP. It’s great to know the practice staff are up with all the latest trends professionally and at home.
p.s. @TheBBG, thanks for the link to the big sister.