Question 1

whats the difference between the one with the 7 or 9 filters?

Accepted Answer

the number is how many inches tall the filters are.  the taller one (9") will filter water at a slightly higher rate. when i used one of these, we had 7 people getting ALL of their drinking and cooking water from it (one bathed with it) in a very hot and dry climate.  There was never a shortage of water, but i did have it fed by a filthy mosquito larva, bird poop, rat poop infested cistern 24/7 (a float valve prevented overfilling) and the sweet filtered water drained into a bunch of 5 gallon containers. Never got sick.

Question 2

The black rubber seal, on the bottom, leaks.  Is there any way to replace it?

Accepted Answer

Right on.  If properly lubed and installed, it won't leak.  UNTIL the plastic shank wears out from all the side-side pressure.  Then it will slowly crack then leak like mine, then fall off during the night.  Like mine.  But, buy this lil fella:http://www.amazon.com/Stainless-Works-Beverage-Dispenser-Replacement/dp/B00IX87W1Q/ref=sr_1_fkmr1_2?ie=UTF8&qid=1405085923&sr=8-2-fkmr1&keywords=fluid+spigot+drinkI installed mine, and it works perfect so far.  And it's not plastic, so it won't wear out.  And it's designed for the application:  dispensing edible fluid.  Better washers, sturdy construction.

Question 3

I've purchased two spigots now for the filter, and both of them have leaked.  I followed the directions and gently tightened it and it leaked. Any tip

Accepted Answer

Make sure the opening is derbies free. Check to see it isn't dented or out of round. you may need to take a small wrench and tighten it a little tighter. Also make sure that your washers are installed right.

Question 4

How do you make the water alkaline with a British berkefeld?

Accepted Answer

The System does not remove healthy minerals, so you will have them in the water if they are already there before the water is filtered.  If you would like to have the PH level rise, you would have to use something that alkalizes the water, which we do not have any recommendations.

Asin	B002RZRJHI
Best Sellers Rank	#660,197 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #1,050 in Under-Sink & Countertop Filtration
Brand Name	British Berkefeld
Capacity	2.1 gallons
Container Type	Can
Customer Reviews	4.3 4.3 out of 5 stars (191) 4.3 out of 5 stars
Included Components	Filter
Installation Type	Freestanding
Item Dimensions L X W X H	8.5"L x 8.5"W x 19.25"H
Item Weight	7.3 pounds
Manufacturer	British Berkefeld
Material Type	Ceramic
Maximum Flow Rate	30 liters_per_day
Model Name	BK4X4-CF7
Model Number	BK4X4-CF7
Number Of Items	4
Number Of Packs	4
Other Special Features Of The Product	Portable
Part Number	BK4X4-CF
Power Source	Electric
Purification Method	Activated Carbon, Granular Activated Carbon
Supported Water Tds Level Maximum Ppm	1000
Unit Count	4 Count
Upc	781068243201 074714085004

British Berkefeld® Gravity Water Filter with four 7" Super Sterasyl™ Ceramic Water Filter Elements

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