howdy peeps

sometimes if a ph pen hasnt been used in 3+ months the lil probe on the end will dry up and pen has had it.my pen was £3 the storage/cal /cleaning fluids £30 a pen aint worth shit without the solutions to match.and some pens like them yellow ones at £3 really arnt worth a shit.seems ya gotta spend £60 ish to get a pen that will work this time next year.
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