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"Techline CV" vs "Techline" (Netafim Dripline)

Discussion in 'Irrigation' started by BigTree, Aug 20, 2008.

  1. BigTree

    BigTree LawnSite Member
    Messages: 17

    Subject: When to use Netafim Dripline "Techline CV" (TLCV) vs "Techline" (TL) for SURFACE (not subsurface) applications?

    1. When looking at Netafim dripline for residential applications they have two dripline product lines - TLCV and TL. TL costs 15% more than TLCV. So, to pay more for a product there must be some increased benefit; however, the only difference (pro) that I could see is that longer laterals are possible with TL vs TLCV (due to a minimum pressure of 15 psi required on TLCV vs 7 psi on TL to get start of flow through the emitter). Is this the only incremental positive difference between the two? And, is it typically worth paying more to get this feature? Any thougts on this topic?

    2. Why would it cost 15% more to make/sell TL than TLCV (seems as if it would cost more to make TLCV)?

    Thank you. Regards, Jerry.
  2. Mike Leary

    Mike Leary LawnSite Fanatic
    Messages: 22,728

    Isn't one smaller for shorter runs?
  3. BigTree

    BigTree LawnSite Member
    Messages: 17

    Hi Mike,
    The tubing OD (0.66") and ID (0.55") are specified as exactly the same for both the TLCV and TL in the NetafimUSA product specification sheets. Jerry.
  4. Mike Leary

    Mike Leary LawnSite Fanatic
    Messages: 22,728

    O.k., The "CV" is a factory installed check valve version that prevents the
    drip tube draining after the irrigation cycle. That's all we use, but in cold
    weather climes, it should be drained.
  5. irrigation man

    irrigation man LawnSite Member
    Messages: 80

    just remember u cant put the 2 together,alot of people do and cant understand why it doesnt work,when mixed you can never get the 15lbs pressure at the end to open the emmiters on the tlcv

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