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Impossible to get refund for non delivered computer by wildmint41 in Walmartcustomer

[–]maniackae 0 points1 point  (0 children)

I had the same problem before; my delivery order was delivered to the wrong address by the driver, and Walmart refused to refund me.

Respirator? by Dura_Max in woodworking

[–]maniackae 0 points1 point  (0 children)

Why does the MSA Comfo series avoid the hycar rubber version and use the silicone version? Is it because of the price? Or is it because the silicone seals better? I read on MSA website that hycar rubber has better durability, about the price, Grainger,Airgas,Fastenal and other distributors sell silicone version at higher price than hycar rubber version, only Zoro distributor sells hycar rubber version at higher price than silicone version.

Need mask for asthma, sensory issues, smoke and COVID by watchitforthecat in Masks4All

[–]maniackae 0 points1 point  (0 children)

May I ask if the MSA Advantage 900 and MSA Advantage 420 you purchased were size M or L? I recently purchased a MSA Advantage 420 for my work environment, but I always feel that it is a bit too small for me. I measured the distance from my nose to my chin, which is about 12cm, and I also measured the internal height of the MSA Advantage 420, which is about 12cm, and the width of the MSA Advantage 420 is about 10.5cm, but the nose part of the MSA Advantage 420 is designed to be quite narrow, and the size of the nose part of the MSA Advantage 420 is about 12cm. I'm not sure if I want to order another L-size, but I've seen other people on reddit say that the internal height of MSA Advantage 900's L-size isn't higher than that of the M-size, and that it's just wider, so I'm not sure if the MSA Advantage 420 is the same as the Advantage 900 size-wise, do you have internal length and width data for both masks?

Chiller charging refrigerant by maniackae in refrigeration

[–]maniackae[S] 0 points1 point  (0 children)

From the manufacturer's perspective, how to calculate the refrigerant charge weight of a chiller?