Kamoer pump heads lifespan?

[SAMS]

How often are people changing the dosing heads on their Kamoer dosing pumps?

As here in the UK it is approximately £26 per dosing head, however I can get 10 dosing heads directly from Kamoer on AliExpress for about £80 all in.

 

[DeniableArc]

Iv had my kamoer f4 dosing 100ml per day with 4 heads for over a year no probs yet.

 

[Hersheyb]

once a year with average usage.

 

[SAMS]

Thanks for your help.

I have
1 x X4
2 x F4

The F4’s were brand new in May last year.
So will look at replacing all of them about that time.

 

[ca1ore]

Depending on usage, I would think you'd want to change out the actual peri tubing every year or so but the mechanical heads should last much longer than that.

 

[SAMS]

I’ve been changing the head in one go, as it’s easier for me than to faff around changing the peri tubing