You can read a little bit more about Convalmore in the following silent distillery profile.
Fellow 'maniac' Luc Timmermans wrote it for an old issue of our Malt Maniacs E-zine;

Convalmore Distillery Profile

The Convalmore distillery is now completely dismantled and its buildings are now being used as warehouses for William Grant & Sons. The distillery established on 24th june 1893 was first owned by Convalmore-Glenlivet Distillery Co Ltd. and construction took until 1894. It was architect Donald Mackay from Dufftown who initially designed the distillery. Convalmore was the 4th distillery to be established in Dufftown.

Convalmore was part of the "Seven Stills of Dufftown.
The others were Balvenie, Dufftown, Glendullan, Glenfiddich, Mortlach and Parkmore.
In March 1904 the distillery was purchased for £ 6000 by W&P Lowrie & Co Ltd.  After the fire incident on 29th October 1909, which practically demoslished the distillery, they owners decided to add continuous stills with a capacity of 2273 litres an hour. This expirement with a column still for continuous distillation of spirit lasted until 1916, after which pot still distillation was resumed.

In 1964-1965 they installed an extra 2 stills, making Convalmore a 4 still (2 wash stills and 2 spirit stills) distillery. The company was in this same period renamed to W & P Lowrie & Co Ltd, Distillers Company Ltd before being bought in 1987 by United Distillers Ltd.  Unfortunately just before this take-over the Convalmore distillery was silenced (in 1985). In the seventies the Convalmore distillery expanded its bonded warehouses and built a dark-grains plant. In 1975 they even built a new mash house. The Convalmore spirit/whisky contributed mainly for blending purposes, being part of the "Lowrie's" and "Black & White" blends.

Convalmore is rarely seen as a single malt and only two official Convalmore's have ever hit the market;
 
- Convalmore 24yo 1978 (59,4%, Rare Malts Selection)
- Convalmore 28yo 1977/2005 (57,9%, OB, 3900 Bottles)

Convalmore is not regarded as a top-single malt.  It has never been produced to be seen as a single malt on the market neither, but this latest release has pleased me a lot. Most likely Convalmore will remain silent forever.....

Luc Timmermans
 

1) Convalmore is one of the few malt whisky distilleries in Scotland that at one time also produced a 'silent malt'.
That's the name for malt whisky that was distilled in a column still instead of the more commonly used pot stills.

2) More trivia will be added later.
 

Convalmore 15yo 1983 (43%, Chieftain's Choice, 70cl)
Nose: Full & balanced. Sweet. Fruity start. Chemical coconut. Slightly sherried complexity with malty undertones.
Taste: Soft start; fruity sweetness. Sherry. Toffee. Very smooth, but drier and a little 'winey' in the finish.
Score: 80 points - making this an affordable way to get acquainted with an obscure distillery.

Convalmore 16yo 1981/1997 (43%, Ultimate, Oak casks #89/604/107, Bottle #89, 70cl) 
Nose: Transparant. Citrus & apple. Subtle sweetness beneath the surface. Very 'fishy' after fifteen minutes.
Taste: Dusty start. Very sherried & winey in the center; strong fruity episodes. Woody, slightly bitter finish.
Score: 75 points - which makes it a bit of a disappointment; but then again it didn't cost much.

Convalmore-Glenlivet 26yo 1977/2003 (46%, Cadenhead's, Sherry)
Nose: Sweet & creamy. Something grainy. Paint thinner. Hint of smoke. Developing spices and organics.
Taste: Subtle fruits, growing stronger. Gooseberries? Orange skins? Cointreau? Interesting profile.
Score: 85 points - the 'quality' in the Cadenhead's range can be dodgy in some cases, but this is great.

Convalmore 28yo 1977/2005 (57,9%, OB, 3900 Bts.)
Nose: Fruity start like toilet freshener. Hint of clay? Liqueurish start, then more chemical quickly. Diesel?
Taste: Hey, a surprising pinch of peat on the palate in between the sherry and fruits.
Lots of improvement with time. Sticks at 84 points after my second try in the MM Awards 2006.
Score: 86 points - this one finally made it to silver after round 3 and a lot of time; 86 points.
Would have gone to 87 or 88 if the finish hadn't been so harsh.

These were not all the (official and independent) expressions of Convalmore whisky I've tried over the years.
My Track Record used to contain a complete overview of all the single malts I've tried, but when I passed the 2000 malts mark (and the complete whisky list wouldn't fit on two separate HTML pages anymore) I gave up. My Liquid Log still contains my tasting notes on most single malts I've sampled and scored, though. You can find a specific expression through the search box at the top of each distillery profile. The mAlmanac now contains (purely personal) selections of some of the best single malts and the worst whiskies I've tried so far - as well as the ones with the highest 'Bang-For-Your-Buck' value. But those tasting notes and scores only reflect my own, purely personal opinions. On Serge's distillery profile on Whiskyfun you can find another perspective on the whisky made at this distillery. Check out the Malt Maniacs Monitor on Malt Maniacs for my scores on all expressions I've tried so far - and those of almost all the other certified malt maniacs as well. The Malt Maniacs Matrix contains a few thousand single malts that were sampled and scored by at least four different malt maniacs, so you can compare our individual opinions.
 

The Convalmore distillery lies in the heart of Speyside, between
Glenfiddich and Craigellachie. It was founded in 1893 or 1894 by
the Convalmore-Glenlivet Distillery Co Ltd. and changed hands in
1905 or 1906. The new owners, James Buchanan & Co Ltd. had to
rebuild the distillery after a fire in 1909. They felt adventurous,
because they experimented with continuous distillation of malt
spirit. This special column still was removed again in 1916.
 
As far as I know, Convalmore operated up until 1985 when it was
closed down. Ownership of the buildings and the surrounding site
transferred from United Distillers to Wm. Grant & Sons in 1990, but
there's no news on any concrete plans for reopening the distillery.
Based on my fairly limited research so far, that's a real shame...