Can't hurt in giving it a go, people here in Aus also use that as well, although it is quite expensive now.

I have it benched up outside. I'm worried about splashes of water and 2 plants may be compromised.

Rid a rot seems to be only available down under. I've searched for other similar fungicides and I found Physan 20. It says it's a fungicide, algaecide and viricide and treats a broad range of pathogens including Phytophthora

Yes, very likely Phytophthora. Never stand plants on a concret floor, always ste them up on a block to avoid cross contamination. I am unfortunately unable to recommend a treatment as different countries have different availabilities so a local input is invaluable.

Sadly it sounds like it had the problem when you got it. If you can source some Rid-a-Rot, spray that on the surrounding plants (helps to kill phytopthora). Also try to maintain good ventilation.

Bummer! To the bin it goes. I’ll be watching my other plants closely but so far no sign of rot. I’ll be disinfecting the area too

As the others say, it’s a goner. The plant has phytopthora, a water borne disease. Usually from the plant being overwatered and too wet.

Watch the plants that were beside this one too, as it spreads quite easily.

You are not alone, all growers will experience a problem plant like that from time to time. I show no mercy - if a plant looks unwell, it goes in the bin.

Sadly, it's a goner!

Thank you for your swift response. When I first got it, it seemed healthy. I was wondering if it was due to my watering. The 5 pseudobulbs are goners. They smelled so I had to throw them away. Here’s what’s remaining. Is it still possible to save or is it gone for good?

Hello Scarlet, first of all a big welcome to the forum, hope you learn a lot here.

I would say the plant you mention, might have already had a bacterial or fungal infection when you got it.

Are the other 5 bigger pseudobulbs looking OK at this point?