not bad if its any good
i tested purolite against dowex and found dowex the winner hands down, lasted loads longer (but dont ask me why) did the test over a 2 x 12 month periods, 12 months with each. my system is di only and streamsupplies sell both purolite and dowex resin, when i ask them ONLY for dowex resin they seem to know what i mean. dowex at stream is about 63 quid + VAT + delivery (i think) but for me at least, well worth it!!!!!