Chlorine and bleach

[koopmaster]

It's a long weekend so yesterday I chucked bleach and loads of chlorine into my 1000 litre tank outside to kill all the algae. Within a hour it was all gone but I have left it overnight to soak. Gonna flush out the tank today and fill it up over the next 3 days ready for Tuesday

 

[koopmaster]

It's all clean now, I have started to fill up the 1000 L again, killed all the earthworms under the patio

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[Duncs]

how l;ong to fill the big beast then