thesmug - 15-3-2014 at 13:11
I do a lot of chemistry in the basement since it's somewhat cold outside and I (obviously) have to dispose of my chemicals somehow. I used to simply
flush them down the drain with plenty of water, but there are concerns of damaging my house sump pump. What do you advise?
Nickdul - 15-3-2014 at 13:38
Be wary of solvents and anything more volatile/flammable. I think solutions of salts are pretty safe to dispose, so long as heavy metals are avoided.
Silver, copper, zinc and aluminum salts can cause problems with septic tanks, AFAIK. Neutralize acids and bases before disposal, because they may
damage the pump's turbine/impeller and casing.
HgDinis25 - 15-3-2014 at 14:02
What are your pumps made of? If they´re metal neutralise your acids and bases and precipitate any soluble transition metal salts, in order to avoid
displacement reactions.
If they're plastic than your safe regarding acids and metals but must avoid organic solvents. If you have to dispose of them dilute them first.
thesmug - 15-3-2014 at 14:16
They're metal, so I will be sure to follow your suggestions.
HgDinis25 - 15-3-2014 at 14:20
My statement on precipitating metal salts could be misunderstood. I'm talking about using solutiuons with OH, CO3, HCO3, etc. to make insoluble metal
compounds so they don't react with your pump. Sorry for any confusions.